Independence Technology has released the iBOT 4000 Mobility System. This is the techiest wheelchair around. The sheer density of computers, software, sensors and gyroscopes could probably send a man to the moon and make me some toast at the same time. The electronics ensure stability at all times and this allow for the wheel chair to even rise up on two-wheels and roll, carefully, down stairs. The iBOT can also travel over many different types of terrain like grass and sand. Eat your heart out
Segway some other sort of robotic thing with wheels seeing as how Dean Kamen invented this one.
World's Most Hi-Tech Wheelchar [GadgetryBlog]