Yeah... O.k.
 

Check it out! It's, uh, impressive, to say the least. Or maybe, interesting. If people thought cyclists were irritating before, jeez... Otoh, it'd be neat to pull up to one of those chopper riders with the ridiculously loud pipes and blast 'em right in the face on take off. :D

That sounded pretty loud in the vid. I bet that would get real annoying after a while. Does look fun though. Would be great on roller blades or a skate board.