T-Mobile has just sent out invites to the press for a product launch event on the evening of October 29th. We weren't given any clues as to what this new item (or items) could be, but we certainly have a few suspicions considering the timing of such an event. Microsoft and Google are both holding press events earlier in the day, after all, which means we're either going to be treated to T-Mobile's Windows Phone 8 lineup or (this is less likely, but anything's possible) a T-Mobile Nexus. Feel free to put your wagers i