Dean Kamen, inventor of the Segway and the iBot Wheelchair, showed video of his amazing robotic arm at the First conference this week (First is a foundation to promote science and technology).
www.youtube.com/watch?v=
Skip to about two minutes in to see the guy with the robot arm drinking from a bottle and actually writing.
A closer look at Dean Kamen's robotic arm [Boing Boing]
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