Joshua Kinberg, producer of Bikes Against Bush, poses with his newly developed writing bike near his home in Brooklyn, New York on August 23, 2004. The bike is able to write messages on the pavement using a set of five paint cans attached to the back of the bike. Kinberg will ride the bike for a few hours during each day of the Republican National Convention while the public will determine the messages written by the bike by suggesting phrases on his website. Those phrases will be relayed via cellphone to the computer on the bike which in turn tells...