Projection Keyboard PDA!

[MasterGod]

This is something very cool I saw while googling something.. Thought it might interest you.

[JP]

Fairly cool but very old news heh

The only thing about it i feel is that PDAs are meant to be small and portable but to use this keyboard you need quite a lot of space and probably a flat surface which is uniform in colour (maybe even has to be a certain colour, like white) which means it takes up a huge amount of space and is limited to where it can be used in this way....

[Virion]

That's an old stuff really.
Newer stuff (1 month old):

http://youtube.com/watch?v=FF1vFTQOWN4

[deesine]

Cool stuff, we're not far from holographic videophone conversations, hehe

And wouldn't the projection on that PDA sense distance intersections?
In that case the size and material of the surface shouldn't matter.

[MasterGod]

Good to see you back deesine, where were you all that time!?