I blogged little about Windows Workflow Foundation (WWF) here. It looks quit easy to catch up on that stuff by doing some reading and experimentations so I have had a low priority for that kind of sessions, but today I listened on Don Box (might have been because of him that I did go :-) and Dharma Shukla presenting how to combine it with Indigo. It was a show! Anyway … I guess WWF will be a great way to develop process services in a SO architecture when Biztalk is overkill or to expensive. Of course WWF can be used in many other scenarios for example in aggregation services or when you want to develop a workflow (the last one must be a surprise for everyone).