This seems like a GREAT add in for the ever useful Reflector (probably the .NET utility that i can't live without. Saved me precious hours of my life, debugging problems in external libraries).
This add in, allows you to inspect BizTalk artifacts contained in a assembly and *gasp* extract them.
Haven't tried it yet, but it seems like this could prove to be real handy.
[Update] Latest version available on this Codeplex project