Microsoft and AT+T have announced a partnership that will give mobile device customers the chance to shop using Microsoft's Surface computer. Surface allows users to interact with the computer by using touch, gestures, and device placement on its 30-inch screen. This unique shopping experience will let customers compare the details of two mobile devices, simply by placing them on the Surface's surface. The computer will recognize the devices automatically, and will display an interactive coverage map - allowing the user to scale their desired coverage from the national to the local level. If Surface is well received, AT+T plans for expanded distribution among its 2200 U.S. retail stores - and has future plans for allowing customers to "drag 'n' drop" ringtones, wallpapers, video, etc. from Surface directly to their phones. Cool stuff.