This gesture control system looks pretty impressive

[andrewducker]

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Although they're over-egging it with the skiing example.

I'd love to try this - looks like you get a simple set of controls, but it should be pretty intuitive to use very quickly, and you don't need to hold your arm in a precise location to use it (a failing of several other systems I've seen).

Original post on Dreamwidth - there are
comments there.