Recently the BizTalk Server exam has been released. Just do as I did and take it to get yourself certified! For more information, see Scott's blog.
Another important milestone in the life of this great product: SP1 has been released TODAY!! Get it NOW!
I strongly advise everyone to test it in your test environment and bring it in production as soon you can: it's worth it! In addition to that, we got now an adapter migration toolkit: something you might find interesting if you're planning to migrate your integration solutions from BizTalk Server 2002 to 2004.