Mattel are due to launch Mindflex, a mind control game. The game consists of a sponge ball that you levitate by concentrating (and pulling a seated straining face). The ball floats by means of a fan and you can control the height by the power of your strain.
Twisting a dial moves the ball around the customizable circular course, then use your mind to move it up and down to navigate through the various obstacles.
It’s cool in a simple different kind of way though I’m not sure if it has any longevity and you do look a bit of a dork having to wear a head band and crocodile clips on your ears (I don’t think anybody took a picture when I had a play).
Mindflex is due to market the Fall of 2009 and will retail for ~$80.