This certainly is an awesome development. I heard about it for the first time when I was attening MVP Summit in Mar 2007. This will really take the services layer from an enterprise to the internet thus, internet service bus. Wouldnt it be great to develop services around BizTalk services and access them in a rather golbal, internet manner without having to worry about infrastructure it self? This will certainly lets us build business solutions & services without really putting in time and effort on underlying details.
Download the sdk here