I installed the 2.0.1 update the other night when it was first made available. Since then, I've noticed that, after a few minutes use, both the screen and the back of the phone begin to fell fairly warm. If I'm browsing with Safari or playing a game for any extended period, it gets particularly noticeable. I had never noticed this before the update. Anyone else notice this? There's no Apple store anywhere near me, but should I contact them or AT&T about it?