I wanted to specifically call out a white paper that Cathy mentioned in her February Documentation Update:
Over time, there have been several versions of documentation on this subject (created by both Microsoft and others) and that we have seen followed, with more or less success. I am very glad that this paper is completed. Dave Goldman announced that it was coming and talked about people that worked on it. Indeed, it is now here!
Source:→ Exchange Team Blog
Exchange Server 2007, Exchange 2007, Virutal, Organization, Address, Configuration, Documentation