Not sure why no one is wearing a helmet in the video. Maybe the battery also creates a force field that keeps people from hitting the pavement when they crash.
I was in bike-crazy Portland last week and more than half the people I saw riding downtown were on a fixed-gear bike. I'm really intrigued by the simplicity of not having gears but wondering how the heck you get up those steep hills. Everyone I saw seemed to have them geared up pretty high. Anyone seen any fixed-gear fanatics in Spokane?