The magical device pictured below may not look much like a Bluetooth iPad keyboard. In fact, this three-inch high little accessory projects a virtual laser keyboard onto any flat surface in its path. An optical sensor recognizes keystrokes in three dimensions, making the Magic Cube the ultimate portable keyboard from the future.
That is, of course, if it actually works. Preliminary reviews of a similar device, the Celluon Prodigy were not so flattering at CES. The Prodigy does have a much different design, being built into the side of an iPhone case.