Virtual Air Guitar

This is cool:

http://www.newscientist.com/article.ns?id=dn8383

Only in open source world could you do something like this; the possible applications are immense, people who cant use a mouse and keyboard comfortably would be able to “type” in mid air or move files about by grabbing them and physically moving their arms to where they wanted to file to go (I’m thinking primarily of the internet in Johnny Mnemonic or the Matrix “Zion Approach Control”), training bomb disposal experts, teaching fine motor skills to children or having a coarser application of ‘playing’ tennis or football.

Or we could just play air guitar all day.