ISB - Biztalk Services in the sky
If you haven't done so already I recommend you take a look at our latest Biztalk Services CTP from the Connected Systems Division (http://connectedsystems.spaces.live.com/).
Quite a few people has already commented on this and I will just forward you to some of the links I have found interesting:
http://labs.biztalk.net/
http://blogs.msdn.com/stevemar/
http://blogs.msdn.com/clemensv/archive/2007/04/25/internet-service-bus.aspx
http://www.dennispi.com/
Have Fun!
