NaturalPoint is selling a alternative handsfree input system for PCs and Notebooks - the TrackIR device. The system works by optical tracking of a reflective dot users can stick onto their forehead. By looking at the desired position on the screen, the system moves the mouse there. http://www.naturalpoint.com/smartnav/

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Looks pretty cool. It must be nice to be able to keep both hands on the keyboard, and still control the pointer.

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As an arm amputee, one of the hardest things for me is any kind of key + click combination. I get around it using Microsoft's StickyKeys accessibility feature, but this looks like it could help (not to mention it would be a cool toy). -- EddieDeyo

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Very Useful Device not only for amputees, but for those paralyzed.

''I'm still waiting for a foot pedal mouse. -- PhlIp''

They sell something like that too (they call it "Dual USB foot switch"): http://www.naturalpoint.com/smartnav/store/accessories.html#2

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But how do you click?