I have consulted with them previously for some Moleskine ideas. Here is the deal, if you come up with a cool design they give you the cover you designed. Then they institute the design for sale. I have 3 covers from them. If you give them a call and speak to Andrew IIRC, (I can't remember his name), he is a nice guy and will talk your ear off. I would like to figure a way to implement the Sony attachment method on the spine. Though the corner method has some merit. Also a complete sleeve with a window MIGHT work if the leather were thin enough. I think the issue is the overall thickness of the book closed. Here is one I'm going to consult with them about.
Quarter bound
HTH