Our humanoid friend ASIMO had better start counting his blessings. If fate had dealt him another hand, he could have ended up as the behind-wearing UNI-CUB. Honda's latest personal mobility device appears to be a robotic stool with an omnidirectional wheel (dubbed the Honda Omni Traction Drive System, no less). You control speed and direction of the UBI-CUB by shifting your weight in the saddle, and the unit is designed to keep you at eye-level with non chair-riding pedestrians. Obviously this is no all-terrain vehicle, but it does claim to be able to handle gradients, has a top speed of six km/h and a range just under four miles. Which should be plenty for the National Museum of Engineering in Japan where these butt-supporting bots will be demonstrated in June.