As more people realize the benefits to running applications on mobile devices, so shall that industry grow? Or not. The mobile device application development industry seems to be a bit lagging compared with the PC industry. Enter the Greenphone. The first device built on an open Linux platform, allowing developers the opportunity to easily develop and test applications for mobile devices. It sounds like the Greenphone could potentially start the resurgence of mobile application development, but that starts with the purchase of the $695 development device, and a license fee of $195.