Actually, as a device purchaser, I personally don't care about edge cases. (It can happen to anyone.) However, as a service provider, edge cases are what keep

Actually, as a device purchaser, I personally don't care about edge cases. (It can happen to anyone.) However, as a service provider, edge cases are what keep me up at night but are fantastic opportunities for providing even better service. I'm not saying Amazon shouldn't care, but I personally wouldn't care too much about an edge case as long as Amazon does that person good. As for DRM: if it isn't invasive or affect my experience with the book (Kindle and Steam are good examples here.) then I am okay by it. If it is used in some weird way to censor things? That's uncool.