This project started off as another app that Al wrote many years ago to help with his blog writing. He created what he called a "curtain" that would swoosh in behind the main window of his app. We both thought this was pretty cool, and then discussed how to make it a general-purpose "Hide your desktop" app.
Beyond that, we started talking about Guy Kawasaki's DICEE acronym, and how that applies here. Either Al or I will write more about this in the future, but I think those are the two clear points for today: 1) Where this "Hide your desktop (and desktop icons)" idea came from, and 2) the DICEE concept.