Remember how happy you were when you got your Raspberry Pi project to do, well, anything? Programming savant and photographer David Hunt has merely created a working cellphone with his, complete with video proof (below). The PiPhone consists of a bunch of off-the-shelf parts, like a PiTFT touchscreen and 2,500mAh battery that cost a grand total of $158. While that might seem a lot for an ungainly dumbphone, bear in mind that it's a one-off with no economies of scale working for it. As any Pi hobbyist knows, it's also an impressive feat and Hunt is willing to upload his source code if you're brave enough to give it a crack.
[Image credit: David Hunt]