A Paralyzed man using a new brain sensor has been able to move a computer cursor, open e-mail and control a robotic device simply by thinking about doing it, a team of scientists said on Wednesday.
Reuters: Paralyzed man moves computer cursor through thought
According to the article, this isn’t the first time this kind of thing has been done. Still, it’s cool to think about. It’d be a helluva lot better than blink once for yes, twice for no:

Thursday, July 13th, 2006 · 7:21am