If iRobot tickled your fancy, but you don't have the budget for military-grade technology, how about this fella? So, it's not officially called PlayRobot, but if there was a naming convention, we guess that would be it. The buggy has a mounted camera, which relays video back to a PlayBook over a WiFi connection set up via a BlackBerry 9900. The six-wheeler is controlled by an on-screen joystick, much like many tablet versions of arcade games. It's an entrant into this weekend's Robot Challenge in Vienna, so thanks to that video link, at the very least, if it doesn't win they can't say they didn't see it coming.