So, maybe you're not going to TechEd this year...

No problem, you can still take part in the sessions.  Dennis will be doing one that talks about using Workflow Foundation and WCF together, always a topic a lot of people ask about.  It just so happens that talk will be broadcast live.  There's also a talk broadcast live on ASP.NET and WF.  If that's not what you're looking for, there will be a lot of sessions broadcast, check out this page.