Open source robot kit lets you BYO Arduino or Pi

RobotBits.co.uk has begun selling an open source mobile robotics kit from Frindo.org available with an Arduino Duo, or as an under-$100 model that lets you add your own Arduino and/or Raspberry Pi. The Frindo robotics platform, which appears to be about 100mm in diameter, is billed as being more robust than most low-cost educational robots, and is optionally available with a motor controller board and sensor bundle.