Anyone notice that the iPhone 4 is dropping in and out of 3G to no service today?? I'm on Bart and it keeps dropping. Never happened to me before. And I take this route everyday on Bart. Says cannot activate cellular network or searching in the status bar. I haven't updated to 4.0.1 yet either. Seems strange. Could be AT&T trying something right before the press conference? PS..As I'm typing this. I can't even post it. It's been 5 minutes like this. .... Now 10 minutes. WTH?