Ben Gulak from  Canada showed up over a year ago with his uni-motorcycle the "Uno". It was a pretty good concept that worked like a Segway with a gyroscope that kept the rider's balance on the one wheel. He shows up again all over the internet with his latest invention, the DTV Shredder.

http://www.youtube.com/watch?v=hh2nLWYnxkM

This this looks badass and makes the Segway look like a wheelchair. It also has a carbon footprint just slightly greater than a donkey.