Well, sort of. This Heath Robinson style contraption appeared on Engadget.com with this description recently:
“We know what you’re pondering this fine Thursday morning: how can I most effectively put my body in danger while sustaining full dorkiness? All those “action sports” like flipping motorcycles and skiing through avalanches are just way too glamorous. Well, your answer has arrived in the GroundSurf board from Ratleads. The three-wheeled board has an electric motor, and a unique control scheme that allows you to speed and slow the board using touch controls on an HTC phone over Bluetooth. What could possibly go wrong? The board will be out “soon” for somewhere in the neighborhood of two grand.”
I wouldn’t try answering your phone whilst riding it though, and imagine how bad the shinners would be from it.