Another concept from the wonderful guys over at Art Lebedev is a neat sounding idea. It is basically a keyboard that is a touchscreen display.
This is a cool idea of course and sounds great (especially after using the iPhone keyboard for so long) but the problem is that it will basically give you no tactile feedback letting you know you hit a button. It would be a neat thing to have but I can’t think of a single practical use for it.
Anyway, if you want to check out some more pictures of it you can head on over here and look till your eyes fall out (the thing will probably never actually get made).