It's a kit made by Parallax. I decided I wanted to play with the coding more than spend time to construct the robot chassis from scratch. It's a proven design with probably thousands sold and operating. Add me to the long list.
Watch for more info published in this new area. Presently I am awaiting the shipment to arrive, so I have just been working with my original Parallax SPIN processor from the remote conning system. That same processor is used in the Activitybot.