pretty sure this would be happening, but it's looking real now, if 8.5 x 11-inch pieces of paper taped to a window is any indication: T-Mobile is rolling out its 3G service on October 1 to 27 select cities. The above poster was spotted by TmoNews "outside a meeting" and, as you can see, it says, "10.1.08 3G is Coming." As far as those launch cities, we have a handy little list for you after the break. By the way, it's entirely possible T-Mobile 3G is already live in your market, though, so don't let this confuse you too much. It could just mean you're next, or, at least by October 1.