I've just posted the second in my series of blog posts on this subject here:
#FIM2010 R2 Scoped Sync Rules – Part 2 (The Experience)
I would be keen to collect thoughts on this topic, before posting my 3rd and final part. I thought perhaps the best place to do just this was our forum here ...
Bob Bradley (FIMBob @ TheFIMTeam.com) ... now using FIM Event Broker for just-in-time delivery of FIM 2010 policy via the sync engine, and continuous compliance for FIM