We’ve seen people add all sorts of gadgets on their bike’s handlebar; speedometers, odometers, LEDs and so on, but we’ve never seen a digital rearview camera up until now. Cervellum’s prototype unit shown here features a 3.5-inch screen and a 4-hour battery life, along with 32MB of storage for workout data and four USB ports for expansion modules. According to the company, the not-yet-available prototype will retail for around $300 when it goes into production in 2008. -Continued Link: Cervellum