During the course of finalizing the Agile Software Requirements book, the Agile Enterprise Big Picture graphic has undergone some minor changes and has been revised for the umpteenth time. The blog series/category on the Big Picture is here, (but the book does a better job of describing it in a more systematic and incremental way).
Update: April 25, 2011:
I’ve even decided to change the name with a bit of “co-branding” (Thanks to Chad Holdorf at http://www.scaledagiledelivery.com)
The latest version of the graphic is below:
Big Picture: Scaled Agile Delivery Model
Scaling Software Agility 
Hi Dean,
Could you summarize what the nature of the revisions was?
Thanks,
Jon Moore
Jon,
Just some cosmetic changes and changes to the way NFRS are represented as “a base to each backlog”.