I've always loved the Segway, but never bought one because it's difficult to find a lot of places where I can use it. Bikes face a similar problem, which is why people in the US mostly use it for exercise.

The Segway would be a great device for the handicapped, except it requires standing up and decent balance to use.

I've always enjoyed watching kids skate along the sidewalks and malls with those shoes with wheels in the back. When they need to climb stairs or walk carefully through a crowded area, they can; when they have some room to zoom, they tip a heel back and they're gliding along. Segway needs to do something like that.