This image was lost some time after publication.

Wheel geeks (you know who you are) must check out one of the inventions dreamed up by the engineers at Airtrax. It's a multi-surface, multi-hub roller wheel thingie that allows the company's Multi-Purpose Mobility Platform to roll in any direction (except upward). You just know some nutter is working on a version for Hummers. And damn well he should be. [Thanks to Joe for the tip.]

MP2 Multi-Purpose Mobility Platform [Airtrax]

Wheel, Wheel Gone: Michelin Invents the Tweel [internal]