At the end of January the SOA & BPM conference was in held in Seattle . I intended to go there but I didn't get authorisation to go there from my boss unfortunately. There was a lot of information on BizTalk 2009, Dublin, WCF & WF. Lucky for me and I guess for a lot of other people that couldn't...
The BizTalk Server Developer Center has been updated to highlight integration with WF and WCF. Finally Microsoft has written a view articles on how they will include and use WF an WCF in BizTalk. Some things of BizTalk will cover the same features (e.g. BRE is very close related to WF). Reference Application...