Is it the future of transportation, or just a fun way to travel six inches above the ground. I don't know; but Stockholm was one of the cleanest and best smelling cities we've been in. Maybe it's because they keep their options open. There were numerous ways of getting around on public transportation, light rail, subway, bus, water taxi, train, all very punctual too. We found a lot of people on bicycle or walking as well. But this could be the future. These folks attended a training session in the Gallerian across from our hotel. At the end of it they were set loose on the streets. I was lucky enough to catch them.