The presentation was given to the Open Wallet Foundation - Architectural Discussion group and got some good feedback, which I included; see the link. You can send me comments now, or we can review a week tuesday.

https://docs.google.com/presentation/d/14S4Jz4-lYDShL0fI2h4go3yPMCW6DbzNtUYp48Kz9rw/edit?usp=sharing

..tom