Office Communications Server 2007 R2 Workload Architecture Poster

Rui Maximo from Microsoft released a very nice and beautiful poster called "Office Communications Server 2007 R2 Workload Architecture". 
This poster describes the traffic flow of protocols and ports used in each workload on Office Communications Server 2007 R2.
The poster can be downloaded at the following location:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=af2c17cb-207c-4c52-8811-0aca6dfadc94
I remember there was an unanimous desire for something like this in the meeting with the documentation team during my  MCM rotation in May, and finally it's here, great job!