Fixed Gear, Fixed Wheel, Fixie, Track Bike, Tarck Bike, Bici da Pista, Pisuto, Pisto, Velo de Piste, Pignon Fixé. No matter what you call it, if the drivetrain is fixed & there's only one gear - we love to ride it like we stole it.
After you get bored riding your color-coordinated fixie because everyone else has a bike exactly like yours, these will be the logical next step. Bridgestone in Japan is bravely showing the way to the future...