Mike and Bernd currently attend the DevCon Europe 2004 (German site). They are presenting two talks - one is an overview of #develop, the other an in-depth talk on the architecture of #develop. To better visualize the idea of the addin infrastructure, Mike revamped the Addin Scout.
There is now a real tree view of the addin tree, where you can see which tree node is extended by which addin:

The addin view in contrast tells you exactly what tree nodes are extended by an addin.

Pretty neat tool for explaining the concept of the addin tree.
We are currently mulling the possibility of a public build server (CruiseControl.NET-based). Anybody willing to step up as a sponsor (hosting, advertising, ...)? Speaking of sponsoring: if you or your company wants to sponsor a specific feature, please contact me @ christophw at alphasierrapapa.com.