So I'm not going to backport the cool new changes and improvements in 0.3 to 0.2 because 0.3 is much closer than I thought. I've been making serious progress on 0.3 lately and I am going to start rolling out the subversion trunk to a few low-traffic forum sites for preliminary testing.
User rights still need work - as I'm not sure how I want to handle users that register for multiple boards that use the same database. It might be advantageous to allow users to maintain the same passwords across boards, but I don't want registration on one board to grant permissions across all accessible boards. So, there is obviously more development to do, but the major hurdles for multi-site support are good to go.