Google Video: Dean Kamen's Fully Robotic Arm Invention

When I was a kid, I was pretty hard on my body... sports-wise. My parents used to tell me to cool it or I'd ruin my knees for sure. My standard answer was, "By the time I ruin my knees they'll have lightweight bionic replacements". But then I wrecked my knee on May 29th, 1995, at the ripe old age of 20. D'oh. Either way, it's nice to know that progress is being made!