Microsoft Touch Cover for Tablet FPS games?

During the demo, the designer show that flipping the cover to the back, Surface will know cover is at the back. Gallery_5_large_gallery_post_medium


It has accelerometer and patent reported here by cnet. Initial 2009 student demo here.

Hence MSFT can do more with this pressure sensitive keyboard / multi touch cover. When user flip touch cover to the back, they might be able to turn it into nanotouch input device, click here for details, and solve fat finger problem. Enhancing Tablet FPS games.