I added the listing from http://advogato.org/proj/ to the search engine.
I should also know that the SVG Jabber Whiteboard has been stalled for a little while. At first, I needed a good way to do hierarchical diffs against the XML tree as well as representing relative ordering. By good, I mean in a way that would not flood the network with a lot of fork messages and would still leave the distributed model correct.
I discovered XML Fragment from the W3C, but it doesn't look promising. Consequently, I'm going to have to do something myself.
Meanwhile, at work (where I'm developing the whiteboard), I've been sidelined to meet another deadline. So, my time is limited. For the moment, I'm moving forward with the whiteboard in my infinite free time, for small values of infinity.