More XUL Dark Matter

In December, Robert O’Callahan had a post about the large amount of XUL-based development happening without much visibility. Mozilla wants to find out as much as possible about such development. At Solutions Linux 2007, there was a Mozilla/XUL Round Table session to examine the potential of the Mozilla platform through success stories. From what I have seen (mostly in French) it was quite a successful session. Some of the demos and stories included:

• Geographical Information Systems by 3Liz
• CMS in XUL by Next Web
• Business application by Gestranet
• Content creation toolsets
• Instant Messaging for the Enterprise (Jabber+XUL) by ProcessOne
• On-line deployment of Operating Systems, by RIFT

XULfr.org has a detailed writeup (French) (English via Google Translate). What XUL dark matter development do you know about?