I started having problems after using iTunes 7.71. The syncs took muuuuuuuucccccchhhhhh longer and when using Apps they would start and then crash back to the previous screen. I tried rebooting. I got the same thing. I tried resynching. Same thing. I then tried to wipe the phone clean and then resync. Still had the same issues. I then rebooted and then it was stuck on the Apple logo. I tried it again. Still stuck on the Apple logo until the battery drains. I can't get the phone to do anything at this point. I have an appointment with the Apple store this evening in Cincinnati. I'll let you know what I find out.