My iPhone self-destructed in less than a week. The good news is that I went right over to the Apple Store and with absolutely no hassle whatsoever was given a new phone. Nevertheless, it's disconcerting. On about the third day of use I noticed that one area along the bottom of the touch-screen did not feel the touch, and the insensitive area grew over the next day until the entire bottom row of the screen had become numb. I followed the on-line troubleshooting, which involved resetting and reinstalling everything, to no effect. The woman at the "Genius Bar" in the store listened to that and immediately decided I should get a new phone. "Are you seeing this a lot?" I asked. No answer. A while later, I asked "Have you seen this before?" and got a "yes." Looking on line, I'm not finding anything about this problem. Maybe it was a complete fluke, but I thought I'd write it up in case anyone else is having a problem, and also to prove that I'm not just a complete pushover for Apple.
I still love the phone, though!
UPDATE: Apple Insider has an article on the problem.