On Thursday, Nokia unveiled its first phone using a Linux OS. The N900 uses Nokia’s Linux-based Maemo OS, but for the first time in an actual cell phone as opposed to an Internet Tablet that requires wi-fi or cell phone pairing. The N900 runs Nokia’s new Maemo 5 software. Nokia makes sure to emphasize the device’s ability to run “dozens of applications simultaneously.” Size-wise, it compares favorably with the iPhone 3GS, at 110.9 mm x 59.8 mm x 18 mm vs. 115.5 mm x 62.1 mm x 12.3 mm. Yes, yes, it loses out