Sprint and Verizon may have shunned the Nexus One, but that doesn't mean the handsets can't be put to good use: these Android-controlled, Arduino-powered Cellbots now feature the one true Googlephone as the CPU. At Intel's 2010 International Engineering and Science Fair in San Jose, we got our hot little hands on the DIY truckbots for the first time, and found to our surprise they'd been imbued with accelerometer-based moti