Microsoft began selectively rolling out its Xbox 360 fall dashboard update to its public preview program members today, giving them a taste of Windows Phone 7's Metro interface on the big screen along with a host of new features. What's changed? Plenty: from cloud storage for profiles and saves, additional Kinect voice search and gesture support, live TV programming and new social tools designed to make it easy to let your friends know exactly what you're doing with your 360. Registration opened and closed last month, though, so unless your foot's already in the door you'll have to wait like everyone else — we've yet to hear a precise release date from Microsoft, but we'll let you know as soon as we do.