Intel just launched the next Ultimate Coder Challenge. This is focused on Perceptual Computing. Ultimate Coder puts developers in sort of a 7 week long hackathon, where they build a project around an Intel technology and platform. They post about their work every week on IDZ. There are amazing projects from high end professional studios to indie developers.
Projects include a puppet platform app, virtual clay scupting app, photo editing app and inventive games
I highly suggest you follow their work and engage in their posts to find out how they are getting things done.
Links to follow the action