An interesting article, pulled from the Silcon Valley News site:

"Honda says brain waves control robot"
YURI KAGEYAMA,Associated Press

TOKYO - In a step toward linking a person's thoughts to machines, Japanese automaker Honda said it has developed a technology that uses brain signals to control a robot's very simple moves.

In the future, the technology that Honda Motor Co. developed with ATR Computational Neuroscience Laboratories could be used to replace keyboards or cell phones, researchers said Wednesday. It also could have applications in helping people with spinal cord injuries, they said.

In a video demonstration in Tokyo, brain signals detected by a magnetic resonance imaging scanner were relayed to a robotic hand. A person in the MRI machine made a fist, spread his fingers and then made a V-sign. Several seconds later, a robotic hand mimicked the movements.