It’s finally about to arrive. The new WCF-BasicHttpRelay adapter in BizTalk Server 2013 makes it really easy to integrate BizTalk Server with Salesforce. The scenario that I am working on documenting involves getting an opportunity notification from Salesforce into BizTalk Server via a relay endpoint hosted on Azure Service Bus, querying Salesforce to get more details about the opportunity, and then inserting those details into an on-premise SQL Server database.
This tutorial is in the works and should be out soon. Just wanted to get the word out to the community.