During a CTIA event and in a press release, T-Mobile outlined the plan for its 4G LTE network, which will be available nationwide by the end of 2013. Buried in the press release is a tidbit of information about T-Mobile's 1900 MHz spectrum that'll interest iPhone owners.
T-Mobile confirmed that it will launch 4G HSPA+ service in the same 1900 MHz band that's supported by the iPhone. Current iPhone owners who defected from AT&T must use the iPhone on T-Mobile's excruciatingly slow 2G EDGE network. This change from EDGE to HSPA+ will let iPhone owners cruse along at 4G speeds that meet or even exceed that of AT&T. The wireless carrier hopes these changes will be in full swing by the end of the year.
According to AllThingsD, T-Mobile CTO Neville Ray said a marketing push targeting out-of-contract iPhone owners on AT&T "would make sense", but added that T-Mobile is "not there yet."