Raspberry Pi's journey to reach owners has been a lengthy one, but Greg Holloway is preparing to send his board on a longer voyage -- one across the Atlantic. Nestled inside a tupperware tub, the RaspberryPi is the brains of FishPi, an autonomous vessel guided by GPS and a compass that measures 20 inches from bow to stern. Currently in proof-of-concept form, the craft uses a 40 mm rotating propeller and draws juice f
