I noticed that 3G in my area has been disappearing at times today and reverting to Edge or GSM/GPRS - thanks to all those ibrick users taking up my bandwidth on AT&T no doubt...
FYI my local AT&T store said they had people lined up at 5am and they only got 50 phones and sold out in the first hour. I wonder if the Apple store got any more than the AT&T stores? They said you could order online and get the phone in 2-3 days.