Adobe has issued a proclamation that starting in July, the vast majority of e-reader apps and hardware devices will not be able to read purchased eBooks anymore.
This announcement stems from a massive upgrade to the encryption system Adobe has implemented in their new Digital Editions 3.0 and will have reverberating effects on ePub books all over the world. Unless thousands of app developers and e-reader companies update their firmware and programming, customers will basically be unable to read books they have legitimately purchased. In effect, Adobe is killing eBooks and e-readers.