Which famous businessman plays the Segway polo?

Segway polo is similar to horse polo, except that instead of playing on horseback, each player rides a Segway PT on the field. The rules have been adapted from bicycle polo and horse polo. The Segway Polo world championship is the Woz Challenge Cup, named after Steve Wozniak, co-founder of Apple Computers, who is nicknamed "The Woz", and is a player of Segway Polo.