So, I know that the Future of BizTalk Server is right around the corner, with BizTalk Server 2006 Beta 2 on the cusp of being released, and RTM scheduled for sometime early next year.  However, today I saw an expanded version of Eddie Churchill's PDC Session where he details some of the proposed directions for BizTalk Server 2006++ and beyond.  An incredible BizTalk Mapper and a great BizTalk Solution Designer.  I was impressed with the PDC show, and this time he had easily twice as much time and showed a lot of stuff - (he even showed a lot of patience with the audience - nice job, Eddie!)

If you are interested in this kind of stuff (stuff that will never ship, at least as demo'd, because it will undergo so many changes between now and when it is ready...), then you can follow the below links...