I little while back I posted about what it would look like if we were able to have business process orchestrations in the cloud?
Well, today we opened to the public BizTalk Services!! What's BizTalk Services? Well, it's a set of integration services in the cloud. What that means is that you can now integrate with other applications over the cloud.
So take for example, a web based solution that needs to integrate with two online trading partners. You can build your hosted application in the cloud, wire up through BizTalk Services to the other two online trading partner gateways, and not have to worry about setting up all the integration infrastructure on your side of the fence! W00t!