My work cell phone is Cingular/AT&T, and before the buy-out, it worked fine. Now, though, it's dropped just about every call, when it decides to actually dial out. Half the time it won't.

(My personal phone is Verizon, and I like them a lot more. I've traveled all over the country with them and never had a problem. I've also been with them since long before they were Verizon.)

I'm kind of sad the iPhone is only available through AT&T because now I will never, ever buy one.