I just read an article about how they're going to be using a cheap EEG system coupled with a levitating ball to simulate 'Using the Force.' I always thought that EEG was underutilized as a technology, but I never expected it to show up in kids toys first.

I'm certain it's only going to be about 3 electrodes, and all the system does is check to see how much power there is in a given frequency range, and based upon that blow the ball up and down with a fan.

This is pretty cool, though. I know I'll be buying one.