Alongside the PocketTouch technology, Microsoft has also been supporting research on something a lot more visual, a lot more flashy, and a lot more versatile: OmniTouch. While mobile technology has been centering around increasing responsive and sleek touchscreens for the past few years, OmniTouch takes things in a bit of a different direction by using a projector to make any flat surface into a "touchscreen."
At the moment, OmniTouch is pretty primitive and requires the user to wear a shoulder-mounted projector not unlike a Predator shoulder-cannon. From its perch up there, the projector aims and displays the touchscreen on various surfaces according to the user's choice and tracks hand movements for input. Not only can it recognize button presses on a hand, wall, or table, but it can also recognize gestures in 3D-space such as holding a display closer and more upright to indicate privacy, or lower to indicate when it is being used publicly.