We just released the WSE 2.0 adapter for BizTalk Server!  In my opinion this is an important milestone: webservices are increasingly fast becoming the number one interoperable transport both inside and between companies.  The need for security, trust and policy is crucial to further extend the wealth of scenario's that webservices enable.  I find it an exciting idea to know that Web Services within your business processes now have become just a matter of configuration!  Get it here: http://www.microsoft.com/downloads/details.aspx?FamilyId=BA643360-E9DC-4FC5-8D60-8E6C5ECA7861&displaylang=en