Covered BizTalk Orchestrations today. The ability to model a business process using an orchestration is really appealing to me. Our current BizTalk implementation is entirely messaging only, no orchestrations.

It will be interesting to prototype some of our existing business flows using orchestrations and then some sort of testing like:

Benchmark straight messaging implementation with BTS2004, compare with BTS2002

Benchmark orchestration implementation with BTS2004, compare with BTS2002

BTW, there is an excellent demo, "Building Your First Business Process", by Mr. BTS himself covering some BizTalk orchestration basics.