Ooh, this doesn't sound good. The Digital Reader is reporting that come July, 2014, Adobe will be requiring vendors and hardware to support an updated version of their DRM (Digital Rights Management) solution. So what, you ask?
"This means that any app or device which still uses the older Adobe DRM will be cut off. Luckily for many users, that penalty probably will not affect readers who use Kobo or Google reading apps or devices; to the best of my knowledge neither uses the Adobe DRM internally. And of course Kindle and Apple customers won’t even notice, thanks to those companies’ wise decision to use their own DRM.
But everyone else just got screwed."