According with Mactrast, Not only Verizon, AT&T and Sprint are getting the new iPhone 5 ( iPhone 4G) but also T-Mobile as well. The informant, who requested to remain anonymous, went on to claim that the iPhone 5 would also operate at 3G speeds on T-Mobile US network. As you know you can buy an iPhone from AT&T , jailbreak it and unlock it to use it on T-Mobile’s network, or buying an unlocked one from Apple store. However it will only run under 2.5 EDGE T-Mo speed.
T-Mobile USA expects the iPhone 5 to launch sometime in early to mid October, same as the rest of the carriers. The source indicates :
“We expect the addition of the iPhone, and the iPhone 5′s ability to run on our 3G network to make a significant financial difference for T-Mobile.”
Micro Sim cards are ready.. Lets keep our fingers crossed.