I dunno if AT&T is just messed up or what, but i'm in my home with my iPhone 3GS and it keeps dropping calls after I pick up the phone, sometimes it stay connected for 5 seconds, sometimes 3, or 8. 3G is on, but the service for that is very slow, if it even works. Voicemail sometimes works, sometimes doesn't. The nearest Apple store is 40 minutes away and I really don't feel like driving all the way down. Seems like something simple. I've power cycled the phone and have popped the sim card in and out and also sync'd it with iTunes. Any ideas? Thanks!