If you're looking for geeky street cred, it doesn't hurt to have your car's license plate featured in Network World magazine's World's Geekiest License Plates feature.
Clear, concise, and to the point, Unidata Program Center developer Russ Rew's "NETCDF" plate holds its own in the company of eternal questions ("R2WHRU") and verities ("COS 0 = 1") expressed in the abbreviated language of the automobile license plate. And while it may require more explanation than the easily recognizable "MICROSOFT", it uses its powers only for good — unlike, say, "RM -RF /".