Mike is writing a great series on TOGAF: TOGAF Demystified Blog. My commentary begins.
I'll join the conversation. First, a disclosure - I'm one of the people who wrote the tome. My fingerprints are all over TOGAF 9.1. I'm Chair of the Open Group Architecture Forum (the body that author's TOGAF); I worked on TOGAF 9, worked very hard on the team that created TOGAF 9.1, and have worked on most of the integration whitepapers released in the last few years; I am very active on the next release of TOGAF.