The most exciting new capability that has been added to BizTalk Services R12 Release “R12” CTP is Workflow. These new cloud-based Workflow capabilities enable ‘service orchestration’ from the cloud.  This specialized cloud-based, or hosted, Windows Workflow Foundation runtime can orchestrate services that connect to systems in your enterprise, or to systems running anywhere on the Internet via Web services messages.  This new power and capability will enable an entirely new set of application scenarios, and we’re very excited to see what people will do with it.