GroundSurf Electric Skateboard, Controlled by a Bluetooth Cellphone
GroundSurf is a three-wheeled skateboard with an unusual twist: You can control it with a Bluetooth cellphone. It’s driven by an electric motor between the two front wheels, and you can either remotely control its speed with your Bluetooth cellphone or lean forward to accelerate, backward to slow down or brake. But its designers, Paris-based…