Glen Gordon is doing a web cast on it this Thursday. Register here. It should be over before mine (on Reporting Services) if you're interested in both.
Ruest and Ruest talk about here: http://www.ftponline.com/reports/vslivesf/2005/ruest/ . My favorite part? "In addition, the componentization of IIS will allow Microsoft to build the service onto a set of public application programming interfaces (APIs...