In this case Kindle users who buy their books from Amazon shouldn't be affected by this Adobe format change. Amazon decided (smartly in this case) to keep the

In this case Kindle users who buy their books from Amazon shouldn't be affected by this Adobe format change. Amazon decided (smartly in this case) to keep the keys to their own walled garden. As to your other question, I still use a Kindle. I buy books from various places, but I always put it in Calibre and create a non-DRMed mobi file from the DRMed version. I would not buy a book where I could not strip the DRM.