[link|http://news.bbc.co.uk/2/hi/in_depth/sci_tech/2000/dot_life/2326077.stm|The keyboard that isn't there]

" Now there's a solution - a light-projected keyboard.
...
Basically it's a keyboard made of light, which heralds an end to the days of those working on the move having to lug around numerous gadgets. "