John, I'm interested in your V2.0 .. let us know what we can see.
Also, please contact me off-list about possibly making these available on my site...
I have a lot of new Electronic Brick stuff here: http://arduino-direct.com/sunshop/index.php?l=product_list&c=5
I think the Electronic Bricks are especially good for beginners and class situations where you'd like to be really sure about your connections and concentrate on designing software sketches and higher-level systems.
Personally I love the basic prototyping stuff,but in many cases shields like yours, Bricks etc. make it more approachable for people starting out. Works well in a workshop I am doing. People have temperature going to a web page, robots moving, and one guy will be using your shield to build a Camera Controller for Time-Lapse etc..
I think shields and bricks are why Arduino has gone so far past the PIC-hacking days in terms of number of users.