I'm a T-Mobile customer but planning to switch to AT&T. Assuming AT&T won't sell Nokia L920 w/o a contract yet so I'm planning to buy an unlocked Nokia L920 from a different retailer/store. I'll be moving out of the country sometime next year. I still have about 5-7 months left before I leave so I was wondering if it's possible to switch to AT&T and just cancel my service before I leave.
