I'd buy one! :) Are you planning on making a design with a dark grey border like the one the original GameBoy had? The black border looks very dominant on a grey case. This, exactly. :) A grey one would be great. Even better if we could get "dot matrix with stereo sound" or "game boy zero" options ...
I certainly like the idea of this, I would appreciate having some clean cuts!
I would definitely like to get a grey one, especially if it was 'SAIO ready' with the USB and LED cutouts as well - I understand the L + R buttons are in contention as people like to do them differently however.