More exciting announcements!
Eric Lippert and I have just completed writing a book on VSTO that will be in the Addison-Wesley .NET Series--it is coming out this fall. You can read a sample chapter that covers VSTO's new support for Outlook here:
If you are at TechEd, stop by the Addison-Wesley booth to pick up a printed copy of the sample chapter: Booth 548 and 550.
In addition, here are a bunch of articles and downloads for the new VSTO support for Outlook that have just gone live on MSDN.