Not Greg Elliott

Greg Elliott has created a wearable computer that can sense the speed at which you're walking or running, and adjust the music (or change songs) to fit that speed. You start going, it starts going, and changes depending on your actions.

That's kinda cool, although am I the only here reminded somehow of that episode of Family Guy in which Peter wishes that he had his own running theme music?

Found via We Make Money Not Art's feed.