I will be getting an unlocked iPhone 5 from Apple with a T-Mobile sim installed. I have AT&T. I am dying to try T-Mobile with the iPhone now that they have official support and AWS 3G. I don't want to port my numbers over until I have thoroughly experienced T-Mobile's network. So could I just "try" them out for a week or two and then cancel just like that, since I'd be bringing my own equipment?
Will they bill me a month in advance or are they really the uncarrier now that will not? I'd only expect to pay for the days of service I actually used.
Thanks