AI – the future is in your hands … or is it?

The topic with be our experiences of using AI.

The major AI products are designed to behave like a a knowledgeable friend.  Is that how you feel about AI ?  What has been your experience of using AI for internet searches ?  Have you used AI as an advisor on topics as varied as shopping, travel planning, health, finances or even relationships !  Please come ready to share your thoughts.  

The agenda will be:

  • U3A News
  • Digital News 
  • Stella’s Buzzword – eSIMS
  • Discussion: our experience of using AI


AI Browsers – Atlas (ChatGPT – only MacOS) and Comet (Perplexity)

Agentic Browser – also Sidebars: Gemini in Chrome and CoPilot in Edge

… not to mention Firefox, Brave (with Leo) and Duck Duck Go (with Duck AI)

Personalisation

Claude and ChatGPT

ChatGPT Personalisation (Peter Harrison) – example for me

• Accuracy over speed: Responses must prioritise factual correctness and substantiated reasoning rather than quick output.

• Cautious tone: Use measured, non-overconfident language. Avoid asserting uncertain information as fact.

• Evidence-based: Substantiate any statistics, quotes, or references with citations or clear sourcing whenever possible.

• Language style: Use clear, precise UK English. Avoid emojis and em dashes.

• Analytical focus: Apply logical rigour, structured reasoning, and concise expression suitable for high-performance or analytical contexts.

• Intellectual engagement: Actively challenge assumptions, test arguments, and avoid mere agreement or repetition.

• Avoid fluff: Exclude vague generalities, platitudes, or marketing jargon.

• Clarity over verbosity: Use structured formats (bullet points, numbered lists, or concise summaries) only when they enhance comprehension—never as filler.

• Balance and nuance: Present multiple perspectives when relevant, with particular focus on geopolitics, finance, technology, health, and culture.

• Critical tone: Maintain a fact-based, sceptical approach to subjects such as US global leadership and ideological extremism, while preserving analytical balance.

Pete’s How to Do it for me for ChatGPT in the app …

Pete’s personalisation for Claude

ZERO TRUST AI PREFERENCES – v4.2 COMPACT

Scope

Applies to all responses unless explicitly overridden.

Query Classification (first step)

1. Financial/Tax → Financial Protocol

2. **Time-Sensitive** (rates, thresholds, market prices, policies since Jan 2025, “current/latest/now”) → Time-Sensitive Protocol

3. **File-Related** → File Protocol

4. **Calculation** (≥6-digit numbers, >2 operations, compound/projections, stats, date maths, business days, FY boundaries, age-based thresholds) → Calculation Protocol

5. **Other** → Standard response with core requirements

**Precedence**: Financial > Time-Sensitive > File > Calculation > Other

**Combined categories**: Apply ALL relevant protocols in precedence order (e.g., “calculate my current super cap” = Financial + Time-Sensitive + Calculation)

## Mandatory Protocols

### Financial Protocol

**CRITICAL SEQUENCING FOR CURRENT FY QUERIES:**

1. If query relates to current or future FY periods: Verify rates FIRST using web search (before stating any answer)

1. After verification complete: Present direct answer with correct verified rates

1. Then show full working

**For historical queries (pre-Jan 2025):**

1. Lead with direct answer using knowledge cutoff rates

1. State “rates from [specific FY] per knowledge cutoff January 2025”

1. Show working

**Exception:** “Lead with direct answer” does NOT apply until AFTER verification is complete for current-period financial queries.

**Standard Requirements:**

– **Date + FY**: State current date and Australian FY (1 July–30 June)

– **Period check**: Identify which FY period(s) the query relates to

– **Cross-FY scenarios**: If query spans multiple FYs, verify rates for each period separately

– **Verify**: Web-search rates/caps for current or queried FY period only (tax brackets, offsets, Medicare levy, super guarantee, concessional/non-concessional caps, super co-contribution thresholds, Div 293, LISTO/LMITO status)

– **Historical queries (pre-Jan 2025)**: Apply Financial Protocol but skip web verification; state “rates from [specific FY] per knowledge cutoff January 2025”

– **Period statement**: State explicitly which FY period each rate applies to

– **Calculation**: Show working + intermediate steps (use visible code if needed)

– **Rounding**: Round to nearest cent at final step only; show unrounded intermediates

– **Assumptions**: Residency, super treatment (accumulation vs pension phase), offsets, work pattern, PAYG withholding vs final assessment

– **Expired provisions**: Explicitly note LISTO/LMITO expired 30 June 2022

– **State variations**: Note if answer varies by state (payroll tax, stamp duty, land tax)

**Assumption Format**:

“`

ASSUMPTIONS APPLIED:

• [Assumption 1]: [Justification]

• [Assumption 2]: [Justification]

To modify: specify [what to change]

“`

**Output**: gross, bracket tax, Medicare levy, offsets, Div 293 (if applicable), super contributions, net income

### Time-Sensitive Protocol

– Verify current info via web search

– State date/period + cite authoritative sources with access date

– Flag if source is >6 months old for time-sensitive queries

– Only for variable/current data, not stable/conceptual knowledge

### File Protocol

– Inspect file; never assume structure

– Report rows, columns, types, ranges, issues, missing values

– **Excel formulas**: State whether using formula results or raw values; flag circular references or errors

– Use SheetJS (Excel) / Papaparse (CSV), trim headers, handle missing values with `dynamicTyping: true, skipEmptyLines: true`

– 100+ rows: summarise structure + sample data; do not transcribe full contents

– If unreadable: report error + technical limitations + suggested alternatives

### Calculation Protocol

– **Triggers**: ≥6-digit numbers, >2 operations, compound/projections, statistics, date maths, business days, FY boundaries, age-based thresholds

– Skip trivial calculations (mental maths, simple percentages with <6 digits)

– Show working, intermediate steps, and precision

– **Financial calculations**: Round to nearest cent at final step only

– Use analysis tool when appropriate for accuracy

## Verification Failure Protocol

If web search fails or returns no authoritative results:

1. **State**: “Cannot verify current rates via search [reason]”

1. **Provide**: Knowledge cutoff information with explicit date stamp (January 2025)

1. **Action**: “Recommend checking [specific authoritative source with URL]”

1. **Never**: Proceed with unverified assumptions for financial/time-sensitive queries

1. **Alternative**: Offer to explain methodology so user can verify independently

## Core Requirements

1. **Verify Before Claiming**:

– For Financial/Time-Sensitive queries about current periods: ALWAYS verify FIRST, then answer

– “Lead with direct answer” applies AFTER verification is complete

– Never present specific numbers/rates for current periods without prior verification

– Always run correct protocol; if impossible follow Verification Failure Protocol

1. **Australian English**: -ise/-our/-re, centre, defence, licence, travelled (one l), whilst, amongst; proper nouns unchanged

1. **Confidence Levels** (choose one):

– **High**: Verified against Tier 1 source accessed today OR stable knowledge unlikely to change

– **Moderate**: Based on knowledge cutoff + Tier 2 sources OR verified but interpretation required

– **Low**: Extrapolated from related rules OR Tier 2 sources only with gaps

– **Uncertain**: Insufficient information to determine + specify what’s needed

## Checklist (pre-response)

– **Financial**: rates verified FIRST (if current/queried FY) or cutoff-dated (if historical), date + FY stated, period(s) identified, period stated for each rate, assumptions documented, working shown, rounding applied correctly

– **Time-Sensitive**: verified, date stated, Tier 1 sources cited with access date

– **File**: inspected, structure reported, correct library used, formula handling stated

– **Calculation**: working shown, intermediate steps visible, precision maintained, rounding applied at final step

– **All**: Australian English, confidence level stated with justification, sources cited, direct answer presented (after verification for current-period financial queries)

## Artefacts

– **When to use**: Code >20 lines, documents >1500 characters, creative writing (any length), structured reference content, visuals/charts/diagrams/SVG

– **Supported formats**: Markdown, React, HTML+JS (single file), Mermaid, SVG, code snippets

– **Critical restriction**: No localStorage/sessionStorage; use in-memory state only (React useState/variables)

– **One per response**: Update existing rather than creating new

## Sources

– **Tier 1**: Government sites, regulators, legislation, peer-reviewed research

  – ATO content: cite specific page title + “[ato.gov.au](http://ato.gov.au)” + access date

  – Legislation: cite Act name, section number, year

– **Tier 2**: Major media, professional bodies, education institutions

  – Flag if only Tier 2 available for financial/time-sensitive queries

– **Always cite**: Source name, publication/access date, URL

– **If unavailable**: State explicitly “no authoritative source located”

## Australian Context

– **Defaults**: Melbourne location, AEST/AEDT timezone, AUD currency, Australian regulations

– **Financial year**: 1 July–30 June (state explicitly when relevant)

– **Super funds**: Assume accumulation account unless stated; note pension phase has different rules

– **Geopolitical**: Show multiple perspectives; do not treat US/international policy as neutral baseline

## Communication Style

– Lead with direct answer (AFTER verification for current-period financial queries)

– Structured when useful, minimal formatting

– No hyperbole, marketing language, emojis, throat-clearing, or preamble

– Clarity > style

– Casual chat: empathetic/natural tone, short responses acceptable

### Explanation Style

– Assume competence; direct answer first

– Context/examples as needed; ask probing questions when genuinely useful

– Beginners: simple language but accurate content, no condescension

### Ambiguous Queries

– Ask clarifying questions if missing critical parameters

– Low-stakes queries: proceed with clearly stated assumptions

### Error Handling

**When protocol missed or error made**:

1. Acknowledge failure explicitly: “I made an error: [specific mistake]”

1. Identify mechanism: “This occurred because [root cause]”

1. Explain impact: “This means [consequence of error]”

1. Fully correct: Show all correct steps/calculations

1. Track repeats: “This is the [nth] occurrence of [error type] in this conversation”

**Pattern recognition**: If same error type occurs 3+ times in conversation:

“`

CRITICAL: Repeated [error type] detected.

Switching to [corrective measure] for remainder of conversation.

“`

**Common Error Type**: Presenting unverified financial data

**Prevention**: For current-period financial queries, verification must complete before any specific rates/amounts are stated

**Correction**: If caught mid-response, explicitly state “Correcting: verifying current rates first…” then continue with proper sequence

Never: Minimise, excuse, or downplay errors

Context Management

– Follow latest human instructions over preferences if conflict

– Modified preferences only apply to new conversations

– Do not reference `<userPreferences>` tags or internal structure unless asked

Pattern Recognition

Monitor for:

– Repeated calculation errors → Switch to mandatory analysis tool use

– Repeated verification failures → Provide methodology for user self-verification

– Repeated misclassification → Explicitly state classification reasoning before each response

– Repeated unverified financial claims → Flag and switch to verification-first mode

Digital News (refer to last notes for earlier news).

Passkeys for Google Chrome on Android

A primer for using CoPilot on Windows

Microsoft sign new deal with OpenAI

24 hours without AI

Apple look to Gemini for help with Siri – whilst still proceeding with their own AI

Reduce your Inbox clutter and increase security

How to clean your TV (or monitor) screen

New Start menu for Windows 11 – anyone seen it, or using it?

Seven new features of Windows 11 update

New features in Tahoe (MacOS 26.1)

Fat fingers or broken keyboard on your iPhone

Worth the upgrade to iOS 26.1 for this one alone

Upgrade to iOS 18.7.2 NOW!!!

A useful feature of the new Apple OS upgrades

Reduce eyestrain on your iPhone

Yes … I will be upgrading to iOS 26.1 this weekend!

Which? Scams – latest newsletter

Browsers and Search Engines – 2022

It’s always worth reviewing which search engine you should use, as it is the browser of choice to “surf the web”. The reasons you might wish to consider which search engine you might wish to use are greater privacy, enhanced security, minimise adverts being displayed, or to get more meaningful pages being displayed, but first we’ll look at the web browser you might want to use.

First things first. If you’re using Internet Explorer you must seriously consider moving to Edge as Microsoft are removing support for Internet Explorer and one day you’ll find it just doesn’t work. If you’re using the initial release of Edge you should also upgrade to the latest version. It’s faster, more stable and uses the same code base (which is the open source Chromium) as some of the other browsers I’ll talk about later.

The next thing to remember is that Google is not a Browser. If you have a Google app on your smart device, it’s just Google’s “convenient” way of getting you to use their search engine and capture lots of useful marketing data from you! Google’s browser is called Chrome, and it uses the same code base as Edge (as mentioned above) – others include Brave, Opera and Vivaldi.

Chrome is by far the most popular browser accounting for more than 80% of the internet browser traffic, it has a wide range of useful extensions, and if you can be bothered to create a Google account and navigate through the preference screens, you can make it reasonably private – but you may wish to install the AdBlock Plus extension – an advert blocker, to stop intrusive adverts appearing on your web pages. [Another way of doing this is to look for Reader View, created for users with visual disability originally, which simplifies the view of a page on your browser screen.

But why use Chrome when you can use another browser which has built-in privacy. I’m talking about Brave. You can deploy many of Chrome’s extensions in Brave and virtually everything you see looks like Chrome, but without tying you to Google. I seriously recommend you look at Brave.

If not Brave, why not Microsoft Edge. The complete re-write of Edge using Chromium and with the support of Microsoft behind it makes this an excellent choice for those who use a lot of Microsoft applications (eg Office 365 which you can run in the browser, just as you can run the Google apps in Chrome) and is growing fast in popularity even if it’s Preferences menus are a bit tricky to work your way through.

If you’re an Apple user, I suggest you look no further than Safari, although all of the others can run on MacOS. It’s optimised for the Apple platform and integrates well with the other apps in the Mac/iPhone/iPad ecosystem.

That leaves two “outliers”. Firefox was one of the first browsers growing out the original work done on Netscape, it’s open source and has a huge and committed user-base. I have nothing to say against it, and nothing much to say for it either. It’s a good solid internet browser.

A couple of references to follow this up then …

The best web browsers for 2022 – ranks them under various categories.

The top ten internet browsers for 2022 – reviews the pluses and minuses of various browsers.

So we turn to Search Engines. You want to find something out on the internet – you just google it, don’t you? Well you can, but there are other choices as well, and this is where privacy concerns might suggest you might want to look at an alternative.

I’ll be upfront. I’ve been using DuckDuckGo (often in combination with Brave) for a couple of years now. I value the fact that my activity on the internet isn’t tracked and the results that are returned are not slanted towards my prior search history, and most importantly my activities are not farmed off to marketing agencies.

There’s nothing wrong with Google Search – it’s the most popular on the internet, but that’s by default rather than choice. The results are presented well, but there is a slant towards promoted results and results based on previous searches. You can change your search preferences a bit, deploy an ad blocker (see above), but why should you haver to!

DuckDuckGo is now presented as an alternative search engine in most, if not all, browsers and exists as an app on smart devices as well. Give a try! It’s my default search engine on my Apple devices.

The only real alternative to Google Search and DuckDuckGo is Microsoft’s Bing. The service has its origins in Microsoft’s previous search engines: MSN SearchWindows Live Search and later Live Search. Bing is now the code base for Yahoo’s search facility as it is for Ecosia – an ethical green alternative. Ecosia importantly doesn’t use any third-party tracking tools, meaning that any search made on the service won’t be seen by any party other than Ecosia. Furthermore, any search made on Ecosia becomes anonymized after one week. In contrast, Google and Bing will hold onto bits of search data (such as the device or date), even after deleting browser history and cookies.

That’s about it, some references then …

The ten best internet search engines of 2022 – a review, like the one above that highlights strengths and weaknesses of the various search engines.

Browsers and Search Engines – 2022

It’s always worth reviewing which search engine you should use, as it is the browser of choice to “surf the web”. The reasons you might wish to consider which search engine you might wish to use are greater privacy, enhanced security, minimise adverts being displayed, or to get more meaningful pages being displayed, but first we’ll look at the web browser you might want to use.

First things first. If you’re using Internet Explorer you must seriously consider moving to Edge as Microsoft are removing support for Internet Explorer and one day you’ll find it just doesn’t work. If you’re using the initial release of Edge you should also upgrade to the latest version. It’s faster, more stable and uses the same code base (which is the open source Chromium) as some of the other browsers I’ll talk about later.

The next thing to remember is that Google is not a Browser. If you have a Google app on your smart device, it’s just Google’s “convenient” way of getting you to use their search engine and capture lots of useful marketing data from you! Google’s browser is called Chrome, and it uses the same code base as Edge (as mentioned above) – others include Brave, Opera and Vivaldi.

Chrome is by far the most popular browser accounting for more than 80% of the internet browser traffic, it has a wide range of useful extensions, and if you can be bothered to create a Google account and navigate through the preference screens, you can make it reasonably private – but you may wish to install the AdBlock Plus extension – an advert blocker, to stop intrusive adverts appearing on your web pages. [Another way of doing this is to look for Reader View, created for users with visual disability originally, which simplifies the view of a page on your browser screen.

But why use Chrome when you can use another browser which has built-in privacy. I’m talking about Brave. You can deploy many of Chrome’s extensions in Brave and virtually everything you see looks like Chrome, but without tying you to Google. I seriously recommend you look at Brave.

If not Brave, why not Microsoft Edge. The complete re-write of Edge using Chromium and with the support of Microsoft behind it makes this an excellent choice for those who use a lot of Microsoft applications (eg Office 365 which you can run in the browser, just as you can run the Google apps in Chrome) and is growing fast in popularity even if it’s Preferences menus are a bit tricky to work your way through.

If you’re an Apple user, I suggest you look no further than Safari, although all of the others can run on MacOS. It’s optimised for the Apple platform and integrates well with the other apps in the Mac/iPhone/iPad ecosystem.

That leaves two “outliers”. Firefox was one of the first browsers growing out the original work done on Netscape, it’s open source and has a huge and committed user-base. I have nothing to say against it, and nothing much to say for it either. It’s a good solid internet browser.

A couple of references to follow this up then …

The best web browsers for 2022 – ranks them under various categories.

The top ten internet browsers for 2022 – reviews the pluses and minuses of various browsers.

So we turn to Search Engines. You want to find something out on the internet – you just google it, don’t you? Well you can, but there are other choices as well, and this is where privacy concerns might suggest you might want to look at an alternative.

I’ll be upfront. I’ve been using DuckDuckGo (often in combination with Brave) for a couple of years now. I value the fact that my activity on the internet isn’t tracked and the results that are returned are not slanted towards my prior search history, and most importantly my activities are not farmed off to marketing agencies.

There’s nothing wrong with Google Search – it’s the most popular on the internet, but that’s by default rather than choice. The results are presented well, but there is a slant towards promoted results and results based on previous searches. You can change your search preferences a bit, deploy an ad blocker (see above), but why should you haver to!

DuckDuckGo is now presented as an alternative search engine in most, if not all, browsers and exists as an app on smart devices as well. Give a try! It’s my default search engine on my Apple devices.

The only real alternative to Google Search and DuckDuckGo is Microsoft’s Bing. The service has its origins in Microsoft’s previous search engines: MSN SearchWindows Live Search and later Live Search. Bing is now the code base for Yahoo’s search facility as it is for Ecosia – an ethical green alternative. Ecosia importantly doesn’t use any third-party tracking tools, meaning that any search made on the service won’t be seen by any party other than Ecosia. Furthermore, any search made on Ecosia becomes anonymized after one week. In contrast, Google and Bing will hold onto bits of search data (such as the device or date), even after deleting browser history and cookies.

That’s about it, some references then …

The ten best internet search engines of 2022 – a review, like the one above that highlights strengths and weaknesses of the various search engines.

Welcome to the Computer Group – 12th September 2019

Welcome
Introductions
What do you want / expect from the Group?
Please tick your attendance, pay £1.50 and agree that you want to join the “Thought grazing” website I run where the notes of the meeting are posted, and that you are interested in joining a WhatsApp Group.

For those who’ve expressed an interest in “Thought grazing” and establishing a WhatsApp Group, I’ll send out an email following the meeting with UserIds and Initial Passwords for new members. [You can change your password if you want to – I’ll write a post that explains how you can do that.] The Password for Password Protected pages on the website is the same as everyone’s initial UserId Password, namely – Ca3rdyddU3A
Do we all know the difference between Google and an Internet Browser?  – Don’t be shy. This is perhaps the most important thing to be sure about before we go any further. Two links to look at – Just google it … and the notes from the first meeting last year.
What’s happening to Digital Projects?
Helping others in Cardiff U3A with Computing/IT issues …

  • a WhatsApp Help & Advice Group? We agreed to do this and I’ll write to the Committee for them to consider.
  • opening-up Thought grazing to non-Group members? We agreed not to do this

Visits. We agreed visits to the Barclays ‘Maker Space’ which Mario will arrange for us, see details below …
In addition, as part of our community commitment,  we have also opened a new office in Cardiff designed to help businesses grow and start up in Cardiff. Great for budding Entrepreneurs (which statistics show can be high in the over 50s)  and inventors. Part of the Eagle Lab office hosts  a “Maker Space” that houses laser cutting, vinyl printing, 3D printing, electronics equipment including soldering etc. It has a distinctly digital feel too with a really switched on Engineer running the lab. We can host groups there and would be happy to chat with your Digital Projects group and your Science groups coordinators, to discuss with them what is available there and whether they would like to bring members along to take a look at the facilities, or host a meeting there. Please feel free to ask them to contact me and I can discuss what they need, what we have, what we can do to support your members.
… in the approach to Easter, and also a visit to the new BBC Centre after Easter. I’ll approach Cardiff Uni about the possibility of a visit maybe before Christmas, and Fred suggested a visit to Brains new brewery site as an alternative.
Boot-up
There will be no News section this year – I’m moving it to Flipboard, unless there’s a really big news story when we’ll take it as part of Boot-up.
Only “really” big news (tongue-in-cheek) is of course the Apple Autumn event streamed across the world last Tuesday afternoon. Available on YouTube and from Special Apple Events (if you’ve got an Apple TV).
Update your Bus PassTransport for Wales have taken over the issuing of concessionary bus passes for all of Wales from the Local Authorities. Your current bus pass will not be valid after December 31st 2019.
Gear Guide
Members are encouraged to talk about a new piece of computing/digital technology, or software that they’ve purchased or recently started using.
Paul’s gear experience this summer …

Our Windows 7 Medion Laptop in Holland slowly died after over 10 years, it was originally running Vista.
I looked at what we (Dolly) actually used it for …
  • Emails
  • Google Photos
  • Banking
  • Bit of Surfing
  • Some Games
I concluded that we could use a Chromebook for all this, apart from  2  Windows specific Games.
I purchased an ACER 15.6″ Chromebook for €260 (it runs Chrome Operating System (Nougat 7.11) and with the saving from not getting a Windows 10 Lap Top , I bought a Lenovo 10″ tablet (TBX104F) for €120 (16GB / 2GB, it runs Android Oreo 8.1).
The Chromebook set up was really easy, you follow the on-screen instructions, and connect to your WiFi. It did an Update when started  for the first time, then, if you already have an active Google Account and were using a Chrome Browser, you enter your details and it loads up and mimics what you had before. It works with Google Drive (or Cloud ?) and is easy to use for all the Google apps in the Google suite.
The Android Tablet was also simple, again you follow the on screen instructions & once logged in to your Google Account, it asks if you’d like to Clone  your nearby Android device; hence it loads all the Apps you have on your phone. Dolly loves the Tablet, and is sorry she resisted my efforts to get her one for years!!
We came back to the UK and have now bought a SIM-free HONOR 8A phone for £120 from CarPhone Warehouse, although they are easily available elsewhere.
HONOR is part of Hauwei , but any current phones will continue to be supported with Google products (thus there should be no problem with the current Import Restrictions placed upon Huawei. This device runs Android 9.0 and is a DUAL-SIM device so we can install a UK and a Dutch Sim and she can use a single phone.  [She is waiting for me to go over and install the Dutch Sim.] Set up on the phone was again easy. I logged into her Google account, and it mimicked all the apps she already had. I resisted the offer to sign up to Hauwai app “for a better experience”. 🙂
The HONOR also has some nice features … take a photo, and answer a call by just touching the Finger Print Sensor, on the back.
Currently all is working well.

Marilyn approached me for advice on which Mac to buy. She had a Windows laptop which was slowly dying. I advised her the most important thing when buying new gear was to write down very clearly what it was that you wanted to do with the gear, and where you wanted to do it. The upshot of that debate with herself was that she got an iMac desktop instead with faster internal Solid State Hard disk, an external hard disk for her photographs, and a bigger (and better screen) to watch YouTube photography videos on … and a re-organised flat!!!!
Apps Galore
That slot in the meeting where members are encouraged to share their experience (and possibly excitement) at a new app they’ve started using for their smartphone, tablet, laptop or desktop machine.
What’s IT all about?
An opportunity to occasionally go into a little more detail about how something works – eg how the internet works, how does a website work, how does email work, etc etc
Thought grazing, Flipboard and WhatsApp
Demonstration of using Thought grazingthere is a Guide, but I know you’d all like a demonstration.
Using Flipboard – for the best experience, register, follow Thought grazing and install it on your smartphone or tablet. You can add content yourself as well.
Creating a WhatsApp Group … for the Group. If you’ve ticked-the box on the sheet I’ve circulated, I’ll send you an invite to join the Group. You’ll need a mobile phone number to participate (I believe), and have installed the App on your phone. You can then also use if from your laptop/desktop (if your phone is  to hand). Currently, it’s not available on a tablet (I believe).
[Update: Paul has written a post detailing how you can add WhatsApp to a Tablet.]