Calling all open source faithful: the call for participation for OSCON 2007 has just been unveiled. Program co-chairs Nat Torkington and Allison Randal are seeking proposals for sessions and tutorials highlighting the progress and innovation that open source is contributing to the computing industry.

We’re expecting 2500 programmers, hackers, IT managers, designers, academics, and alpha geeks joining us at the Oregon Convention Center in Portland next July 23-27. In addition to hundreds of sessions and tutorials, OSCON 2007 will also feature another edition of the O’Reilly Radar Executive Briefing, a big ol’ expo hall, and lots of events so even if you don’t want to participate as a speaker, be sure to mark your calendar to join us.