If there was any scrap of doubt in your mind, we’ll obliterate it for you right now — October 11th is the day Windows Phone 7 will be unveiled in the US , not just at a fancy London event… and wonder of wonders, T-Mobile’s the star of the show. Looks like AT&T won’t be launching Metro UI handsets all alone, eh? The event agenda clearly states there will be “an exclusive showing of T-Mobile powered Windows Phone 7 devices” at 3:30PM EST, and you can bet your britches we’ll be there live to cover the whole thing. [Thanks, James T.] Confirmed: Windows Phone 7 launches October 11th in New York City, and T-Mobile’s on board originally appeared on Engadget on Sun, 03 Oct 2010 22:13:00 EDT. Please see our terms for use of feeds . Permalink