Mashable - One Laptop Per Child will unveil its XO 3.0 tablet at the Consumer Electronics Show in Las Vegas Monday. The fully functional tablet is designed to be inexpensive, use little energy and brave extreme weather conditions. The rugged tablet includes the Marvell ARMADA PXA618 SOC processor, Avastar Wi-Fi SOC, standard or Pixel Qi sunlight-readable display, and supports Android and Linux operating systems. Unlike any other tablet on the market, it can be powered by solar energy, other alternative sources or hand-cranks.