T-Mobile just updated its 3G/Data coverage in its website. Many cities show they have 3G coverage already, like Seattle, Portland, San Francisco and Bay Area, Austin, Chicago and more. Here we have the maps for your favorite city. Check our gallery or go to the T-Mobile coverage website. Remember, check the box to display data data coverage.
UMTS/ HSDPA is represented by the dark blue color, the light blue is EDGE/GPRS