Motion senstive laptop

Of interest: the BBC reports on a motion-sensitive laptop at
http://news.bbc.co.uk/1/hi/technology/6609245.stm , the idea being that
speed and direction of screen tilt can be detected and used to move
cursors, change focus, scroll pages etc. . Unlike the Wii, it is the
screen that tilts, and not a detached controller. Not clear whether it
is in itself an input mechanism or simply a pointing/scrolling etc
mechanism, I guess that depends on application context.

Cheers
Kevin