Been there, done that.... (Score 5, Informative)

I made a "brainwave joystick" as part of my graduate research in neuro-engineering. http://www.picobay.com/projects/2006/05/controllin g-video-game-with-brain.html This is not new technology... it's been around for about twenty years now, but about every year or so CNN reports on it like it was just invented yesterday. It does have a high "gee-whiz" factor, but the reality is that the error rate is very high. There are thousands of neuroscientists working on brain computer interfacing at any given moment. What makes you think the first breakthrough is going to be for gaming? A more noble cause is to allow the paralyzed to control wheelchairs with mere thought and that hasn't happened yet (even an error rate of 5% is too high). Systems that are a little more accurate involve implanting electrodes in the brain. Unfortunately, scar tissue slowly surrounds the electrodes and the signals become weaker and weaker. Eventually after about 1 or 2 years the electrodes have to be surgically removed and placed in another location (and the patient has to be re-trained). So despite what the latest "future show" on the Discovery Channel may say, we are still a loooong way off from driving our cars with brain waves.