Hi guys,
just to come in on this, I to am having the same issues... the thing is, I'm not sure if mine was working perfectly before the OTA update. Took the kids to the park this weekend, tap to focus is useless, it randomly picks a spot, usually in the top left somewhere and everything else is just a blurry, overexposed mess (much the same as everyone else's problems)
The phone is only about 6 / 8 weeks old and I am sick of it. My old iPhone 4 used to take cracking pictures of the kids and family playing and my HTC is just ruining it... Is it worth contacting HTC UK for a return - really wish I'd got the S4 now :*(