Howdy! I just launched a Kickstarter campaign for my project, Rex. It's a single-board computer like the Raspberry Pi that I designed specifically for robots, so it has a more relevant form-factor and is a bit more powerful spec-wise. I'm also working on a custom linux distribution, called Alphalem OS, also designed specifically for robots. The goal is to make doing things in advanced robotics like object recognition, voice recognition, and speech synthesis simpler (Arduino-style).
Take a look if you're interested! Feedback and questions totally welcome.