I bought an iPhone 5, in November after they announced that Refarming was "done" in Minneapolis, St. Paul and St. Cloud. It was a frustrating 2 months of non stop dropped calls, Edge network all the time. I still have not gone back to my iPhone 5. I would strongly recommended not relying on T-mobile's shoddy PCS coverage to use an iPhone 5 on their network. The new iPhone 5, will have AWS frequency built in so that phone should be the one you target. OPs like you ask this question about coverage, because T-mobile is the only major provider that has for over 6 months now claiming a great PCS 1900 Mhz network and invites people to bring their iPhone to their network. Yet, they do not provide a single coverage map on the 1900 Mhz PCS band. In any Europeans country the regulators would have thrown the rule book at them. But our toothless tigers FCC and FTC are the foxes guarding the hen houses. Unfortunately it is the consumers that are the hen not corporations that are not ethical.