This is just awesome: Marque Cornblatt, a San Francisco-based artist and host of the DIY lifestyle and design series Gomi Style, has created Sparky (the Self Portrait Artifact Roving Chassis), a computer on wheels that can be controlled through Skype (and some custom software that uses Skype's API).

He's posted a full set of instructions on Instructables so you can try to make your own Sparky, and he's also made a video, which really brings the project to life. Check it out here: