This is kind of neat..
Wahoo Fitness: RFLKT Bike Computer
World’s only iPhone powered cycling computer – Using Bluetooth Smart cyclists can wirelessly send cycling App data and workout info from their iPhones to the handlebar-mounted cycling computerWirelessly “reflects” data, images and cycling App features from the iPhone 4S/iPhone 5 onto the designated cycling computer via low-energy Bluetooth Smart
From the RFLKT cyclists can navigate screens, start/stop intervals, control music playback and additional App features, while the iPhone remains securely in a jersey pocket or bike-mounted compartment
Coin cell operated, requires no recharging with a battery life of 1 year
Weighs 2 ounces and measures 2.4” L x 1.6” W x 0.5” H, making it lightweight and compact like the top bike computers on the market
Available at: WahooFitness.com
Price: $129.99
Website: www.wahoofitness.com