Despite all the talk about AT&T being Microsoft’s exclusive U.S. launch partner for Windows Phone 7, it looks like T-Mobile will actually have the honor. According to a post on Microsoft’s website, the “Windows Phone 7 Worldwide Launch Event” will take place next Monday, October 11, in New York City. The site also notes that, “T-Mobile reps will be present for device showing and their service offering discussion.” With the launch of the G2 and the relaunch of the myTouch 3G, it looks like the nation’s #4 carrier is coming out swinging for the holidays. There you have it. October 11, New York City, Windows Phone 7. We’re hoping to see that giant, sexy slab of a device known as the HD7. How about you?