Photos: Fueling Toyota's future

The I-Wing, which is sort of like a robotic, driveable chair. So far, the market for personal, portable transportation devices like this has been miniscule. Still, some futurists have postulated that the design of future cities may lead to demand for vehicles like this.

Michael Kanellos/CNET

By Bill Detwiler

Bill Detwiler is Editor in Chief of TechRepublic and the host of Cracking Open, CNET and TechRepublic's popular online show. Prior to joining TechRepublic in 2000, Bill was an IT manager, database administrator, and desktop support specialist in the ...