I was on a conference call with those characters from SOA Software and they were demonstrating their BizTalk Management Pack.  They also spent a lot of time covering their in-development WCF binding.
Moving forward, SOA Software is releasing Microsoft-friendly agents for …

WCF (any transport)
BizTalk (any transport)
BizTalk-WCF (any transport)

All of these (except the BizTalk agent) […]