My first post and it is to pass on some information about the new iphone 6s+. Mine had been charging over night and when I woke up this morning the screen had gone black (the alarm hadn't gone off) and when I pressed the power and home buttons to see if I could get something the home button was burning hot.
There is a solution in the Apple forums for this which is to hold the power and home button (bearing in mind how hot it is you will need a glove or towel or something) for around 10 secs until it essentially soft resets.
I think this is only a short term thing as I see the hot button problem as a safety issue. As an individual I don't think Apple will be that bothered, however, if anyone else is having the problem then can I suggest that you post here and then O2 can use it to push Apple to investigate and sort out a solution or organise to replace the phones.
Already arranged a replacement from o2 now. If Apple want to fix it they will but I will just keep getting replacements until they do.
It's not good enough though is it? You could be sleeping uneasily with a fire extinguisher at your side....