OK. this has nothing to do with Microsoft technology, but I love cool tech toys . . . and this MindFlex from Mattel looks awesome!
MindFlex — Have you ever dreamed of moving an object with the power of your mind?Utilizing advanced Mindflex technology, the wireless headset reads your brainwave activity. Concentrate … and the ball rises on a cushion of air! Relax … and the ball descends. It’s literally mind over matter!