t-mobile us 3G band needs 1700 mhz (I believe that's the receiving frequency). example: even an unlocked iphone supports 850 / 1900 / 2100 hsdpa/3G, but won't g

t-mobile us 3G band needs 1700 mhz (I believe that's the receiving frequency). example: even an unlocked iphone supports 850 / 1900 / 2100 hsdpa/3G, but won't get more than "edge" speed due to the non-support of 1700 mhz