Having a great time at the SOA conference in Redmond this week (as only a geek can)  Big news from the keynote this morning was OSLO - more information here:

http://rd3d2.spaces.live.com/

or the more official version here:

http://www.microsoft.com/presspass/events/soa-bpm/materials.mspx

Interestingly, having largely abandoned UML and Rational, Microsoft is embracing the concepts behind these with this new strategy.  BPEL was mentioned alongside a modeling language capable of handling SOA concepts and feeding into a new execution engine  - a future version of Biztalk!