Sort of, but electric and self balancing (front to back) but it's like 6" off the ground. It's a "One Wheel" brand thingy. Thought it would be fun to ride to work... Turns out I'm afraid to go fast and my legs start shaking after a mile or two.
Checked them out, I have absolutely no use for one of these in my life (can't work with this since I carry equipment) but damn they look cool and I still want one. Only way it would be better is if it actually levitated like the one in back to the future.