there is a short demo maglev track between pudong international airport and longyang road. the speed is high. the trip is short, just 8 minutes. the train accelerates all the way to the max speed, and slows down. single trip ticket fare is 50 yuan. you can get 10 yuan discount if you have an airline ticket.
it is called a demo version because the distance is just too short to make sense, or make profitable.