Mockups are a hobby of mine, and now I have created a mockup of the headless Mac.  The dimensions are 1” x 8.5” x 11” (width, heighth, length).  I’ll be anxious to see what you think.  It was inspired be the small form factor Compaq PCs my school uses as kiosks.  These little Macs would make good kiosks too, but being a power user, I would never get one.

Edit: And of course I should enable comments so you can tell me what you think.