Here's a great comparison  between the 2004 version of the WSS adapter (GOTDOTNET version) and the 2006 version, due to be out November 2005.  I am so looking forward to working with 2006.  I'm like a kid in a candy shop.  I've been working with BizTalk since 2002 and stuck with it all these years and to see it evolve (got a tear in my eye) its so beautiful.  Great work guys. 

-B