As mentioned by Bob Beauchemin, there was a great night of Service Broker last week as part of the Guerilla SQL Server 2005. Dan Sullivan presented "Night of the Service Broker" with members of the SQL Server Service Broker team. Sounds like a fun opportunity to talk about one my favorite current topics!
As Bob also mentions, a new SQL Server Service Broker Developer Spot was created by Dan. According to Bob:
The site will host discussion forums, articles, tutorials, and also host cooperative development of some interesting service broker apps. It's open now, and they'll be sample applications (including the Service Broker client object model, courtesy of the team) up there shortly.
Sounds great! I have already created an account. Take a look, as I am sure this will evolve into a great resource!