Yeah...just tried to update a few hours ago via itunes. I ended up getting a message saying the update failed, so I tried to restore the phone. The restore failed & then the phone would no longer appear in itunes when plugged in the USB port. I unplugged it & tried turning it on several times to no avail. Looks like I'll be headed out to my local AT&T store for a new phone. I sure hope no one else has experienced this kind of trouble.