Not a whole lot, things are still cruising along. The only major public event has been the release of the first app based on the Archive. The app is called 'Mother Brain' and is an emulation add-on for Plex. You can find more information about it
here.
There are a couple of other apps that are using the Archive, but most use Archive as a backup database instead of the primary database. Mother Brain is the first to use Archive as the primary database.
I've spent a couple days optimizing the API after identifying a couple of bottle-necks. Hopefully our web interface will be coming soon, and then we can start building the Archive community.