I have a couple more questions -
1. Now that all my books are DRM-free on calibre, do I delete all the books from the various kindles and reinstall them from calibre? Am I also correct in assuming it would be best to deregister the ebook readers from the big A so that the seller has no access to my ebook reader?
2 On the other devices (iPad/iPhone), would it be better to read these books in iBooks on my iPad or via a different app?
Thanks for your help!
(still not ready to change my handle...)