It looks like the people at Promixis has been really busy, they posted a download link to the latest beta version of Girder 4. In case you are wondering what's new, here are some of the new features (which might still be under development):
Download Girder 4 beta 2
- Z-wave support
- Insteon support
- NetRemote integration
- and much more.
Download Girder 4 beta 2