It's on Saturday the 15th of September:

http://softwarefreedomday.org/

S/o ask in regard to helping organize it. What's got to be done? Is there a venue yet?

Yes. The venue will be at the Melbourne Unitarian Church hall, which is (a) close to city, and (b) has ample parking, and (c) is cheap. We are just finishing off a speaker's list and have a media campaign in preparation. As with last year, free lunch with open sauce will be provided. All the best, Lev