AT&T customer service is a disgrace, and Apple's is not far behind. I have called a dozen times and been told different things each time. One guy even laughed when I told him I was under 18 and asked me what I was doing with an iPhone 3G in the first place, I should spend my money on an Elmo....
Some representatives have told me I will be able to buy an iPhone 3G S without a contract or commitment no problem on Friday morning as long as they are available after pre-orders.
Some told me AT&T doesn't offer a no-commit, no-contract price on the iPhone 3G S, which contradicts the website....
Some straight up told me they have no idea and that I should call AT&T when I was on the phone with Apple, or call Apple if I was on the phone with AT&T.