In order to purchase the iPhone at the advertised subsidized price; 199 for the 16GB and 299 for the 32GB iPhones, you would need to sign a two year contract with AT&T.
You do, however have other options to purchase the iPhone, all of which are considerably more expensive upfront. Ebay and Craigslist are but a few places you can purchase an iPhone.
You don't "have" AT&T, the iPhone comes with the ability to connect to AT&T.
No, T-mobile does not have the iPhone. AT&T has it though.
T-Mobile does not have the Iphone only At&t does
There will not be an iPhone 4S for T-Mobile but you can get any iphone unlocked at unlockatt.com
Since the release of the iPhone, AT&T has had an exclusive contract with them. (Yes.)
No it is not. It is for AT&T unless you "jailbreak" and "unlock" an iphone. Instructions to do this can be found on the internet.
Yes, AT&T sells the iPhone in the store. You do not have to go to Apple to purchase one.
Yes. AT&T has always carried the iPhone since 2007.
AT&T doesn't sell the iPhone 3GS in white.
You need to have AT&T to own an iPhone.
No you can't. Only A T and T
AT&T.