Needed: A Smoother Segway

Segway is recalling all 23,500 of the electric scooters they've sold in the U.S. because of a software problem that can cause the wheels to reverse direction, the rider to fall, and break wrists, teeth and even a chin. And Dean Kamen wonders why his prediction that the Segway will transform the way people work and live, replacing cars, bikes, walking, and, uh, ambulances, hasn't come true yet?