There is also pd-l2ork for RPi. We are just readying a release with a comprehensive support for GPIO (including hardware and software PWM), as well as MCP3008 AD converter (for analog sensors). There is also a fairly detailed documentation on how to run RPi headless via a laptop, while sharing network connection. See: http://l2ork.music.vt.edu/main/?page_id=2288
HTH