Alternatives to keyboards for mobile devices

A very well designed demo of some medium-fidelity ui prototypes of gesture interfaces for mobile devices. Some of these are quite creative. There's a few usability problems such as two-handed input, the need for a steady hand and the lack of a "hold" button for when you get the right position. But these are all "solvable" problems. Nice to see people thinking outside the box and looking into the very significant problem of mobile input devices.

Sony Design - Experience Computing
Viable future alternatives to the keyboard interface.
Touch, Roll, Throw, Bend, Build

via Howard's blog at the Feature