i've read a lot of stories about people saying their iphone won't recharge fully – or rather that the little charge indicator has a bug, so that it doesn't stretch out to 100% even tho' the iphone is in fact fully charged.
this hasn't happened to me at all. iphone apparently has 2 kinds of screens: version 5 and version 7. i appear to have the version 5 screen iphone, which doesn't suffer from any of these reported iphone issues. . .
i guess i lucked out when i purchased mine! i've met several other iphone users now – like greg from yttp – and none of them seem to have any problems either. thus i believe these problems are likely being over-reported.