Segway sales booming in response to high gas prices. A couple of weeks ago, I overheard someone who seemed to be an energy policy guy remarking that he thought it was weird that you don't see electric mopeds. I'm enjoying my conventional bicycle a lot. DC's mayor just bought one of those tiny Smart Cars and ditched his SUV. I suspect we'll start seeing a lot more diversity of conveyances in the future, as people and institutions try to tailor their choices more precisely to what they really need.