I've opened up a blog where I'm going to post frequent development updates, you can find it at http://freeso.org ! Obviously the world famous SimAntics & World Development thread will return soon, but it'll be more focused on the technical side of things, and the blog will be where you can find big updates and information on community events.
From now on if you wish to follow FreeSO's forums, you should start going to http://forum.freeso.org. We've migrated the old XenForo instance over and handed Afr0 a copy of the database which he can use for his own if he decides to buy his own.
Rhys