Three years ago at PyCon 2009, we had the first PyCon Open Government Hackathon. Our big project was Open States (then the 50 State Project). The goal was to begin scraping state legislatures' websites in the hope of providing a common format for bill metadata across all 50 states.
Here at PyCon2011, there are quite a few open source rock stars in attendance. Software hackers of various stripes, developers from the corporate and community realms, and many other technically savvy and interested folks.