2 million Feb 2016, 4 million and 35% of all retailers as of Dec 2016, I'd project to 5-6M and nearly 50% today - what do you consider "relatively few"?

I use it all the time, everywhere. The slowdown and uncertainty around EMV certainly helped adoption.

Curious - what's not working? Is your phone physically failing or do you actually have processing speed/camera resolution/??? issues with the design? My iPad 2 is finally running into actual resource issues, but my iP6 is fine.

When it gets warm (and I live in the Caribbean) one of the colours seems to go and everything turns a bit yellow. The fingerprint reader appears to have stopped working (this might be sw, but I have troubleshooted), and occasionally it will just stay black for 10-20 seconds, which is a bit nerve-wracking.

jailbreaking is an unnecessary security risk so I wouldn't do it.

I consider it an acceptable and necessary security risk.

YMMV.

The battery on my iPhone 6 tanked at 25 months. Took it to a couple of local "specialists" (nearest Apple store is 3 hours away) and they said that's normal for the iPhone 6.

I'd have to charge is 2x per day with normal use and about a 50/50 split between cellular networks and office/home wi-fi.

My wife's 6 is 30 months old and the battery is showing the same symptoms.

Interesting. My husband's iPhone 6 did the same. We had to replace it. I didn't realize it was a wide spread problem

I apparently got lucky - the battery is one thing which is still working like new.

I've had my iPhone 6s+ for at least 2 years now and the battery is surprisingly in very good shape, and I am a power user for sure. Very happy with it but with that being said I will willingly pay $1000 for the new 8. Especially if they let you do the $30-40/month for the rest of your life

Yeah, the battery life seems to tank after a couple years - I guess they only plan on so many charge/recharge cycles.

My 6s is about two years old and is starting to do the same thing.

What sort of additional apps can you get by jail breaking and what sort of extra control do you have?

I was under the impression that jail breaking can expose the phone to security risks and prevent the phone being updated? But I may be naive believing typical corporate propaganda?

Here are a few:

Another that is excellent is an app that allows you to easily downgrade apps to their previous versions if you find that a current version is bloaty or has removed key features, etc.

There are a couple of Facebook helper apps that allow you to have much better control over FB and to disable some of the crap, same for the YouTube app.

And then there are several that just make the interface nicer and more useful that Apple won't allow in the app store for some reason.

Largest grocery chain in TX -- HEB (and its premium spin-off, Central Market) does not accept Apple Pay (AP). Home Depot and Lowes don't. While Walgreen's does and was one of the earliest adopters, I don't think any other big drug stores like CVS do. No gas pumps do though some gas stations inside the stores sometimes do. In the US, virtually no restaurants -- I've only seen one exception -- provide handheld terminals to use Apple Pay (or any credit card) at the table unlike many other countries. In summary, other than an occasional purchase at Whole Foods and Walgreens and Starbucks, I rarely use AP in the US though I always try. Contrast that with Australia and Canada, where I used AP almost everywhere credit cards are accepted.

I heard someone talking about this lack of jack on the radio when the last iPhone came out. He suggested that the decision was born out of a desire to make the phone thinner but also to help with the waterproofing. I was surprised about the latter because my Samsung XCover phones have always been waterproof and had a headphone socket.

I was seriously annoyed this morning when I was on the bus and not one but two people wanted to pay with ApplePay. I've nothing against the technology but I do object when people aren't ready to pay with it and hold the bus up. One woman still had her phone in her bag and took a minute to find it.