Oh, the wonderful world of concepts how we wish they could be turned be reality. What we have here is the Glide Keyboard from Weston Boege which rests on low friction pads. The keyboard slides around your desk picking up the movement through an optical sensor mounted underneath. The keyboard also integrates traditional mousing controls into the moulded palm rest that grips your hands as they move. An interesting concept which might never say the light of the day.

[Yankodesign]