I am back. My older work was posted under Prettybird, but that account stopped working. This one of my newer designs. It uses a back steering wheel instead of a coaster and can work well on smooth or rough surfaces. It is also designed to carry some weight. I have loaded it up to 1.5 kilos so far (about 3 lbs). So far I have used the Parallax Basic Stamp (BS2PE) and reciently added a Parallax Propeller board. I am finally in the process of learning the prop. I like the back wheel steering because it dosen't get stuck on sidewalk cracks and such. It uses 2 x 3" model airplane tube tires and has alot of traction and room for expansion.. Work still in progress.