On Mon, 09 Aug 2010 11:30:43 -0500, Leon wrote:

Can't agree, that technology had been around for many years. I have
lamps in my house that turn off when touched, building elevator buttons
that select by touch, and my I-phone needs the touch of skin, not a
stylus or finger nail to work.

But none of those are spinning rapidly :-). And aren't some of them
pressure-sensitive rather than touch-sensitive?

--
Intelligence is an experiment that failed - G. B. Shaw