I have been thinking about Amazon for digital release. The more I learn about it, I don't think I would want to do their exclusive deal. The exclusive deal basically locks you into only using Amazon and your content must be exclusive to the kindle store, it's also available as a "lending library" or whatever for Prime members. You get like a percentage of the global fund shared between all authors and are paid per page that the users open. It just seems clunky to me as well as restrictive. Using them just to self publish seems like a solid idea though, I think you still get 40 or 50% of the sales.