To the poster who commented on AT&T's remark regarding dropped calls.
It seems that is the norm for THEM. I've had just about every carrier out there including AT&T when they were Cingular a few years back. Only reason I change is because of specific phones that I want that Verizon doesn't/wouldn't carry. Every time, I run back to Verizon because of all the dropped calls and "can you hear me nows".
When the iPhone debuted, I so desperately wanted to give them another try, but resisted because of the poor service, not to mention limited hours of customer support (Verizon is 24 hours). In short, I just gave AT&T another shot as I received my 3GS on Saturday. Here we are two days later and I've had about 10 dropped calls, LOL! I've had zero in the 15 years I've been with Verizon. According to AT&T's geo-coder, I should have EXCELLENT coverage in my area.
Needless to say, I am kind of glad to see this thread, as I am hopeful this is not the norm (many have mentioned AT&T's improvement in reception since my last experience). I absolutely love my iPhone, and could live through the headache, I just hope they get better/this isn't the norm, because everyone in my immediate family are going to jump ship to AT&T after 15 years with Verizon (we had/have a family share plan) because of me and their fascination with the iPhone. Not to mention, we get a 20% discount on the monthly service and waived activation fees because my fiance' receives an accommodation through the hospital she is practices at.