Quote:
Originally Posted by Redcard
DRM'd EPUB or DRM'd PDF is just as locked to devices or readers as DRM'D Mobi/AZW.
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Well, while I certainly would not call any DRM scheme "open" or "non-proprietary", it is true that several sources use Adobe's ADEPT system (via Adobe digital editions) which makes them interoperable with several competing readers, unlike Amazon's DRM witch will only work on Kindle devices or Kindle software.
That being said, it must be true that many Kindle users find little reason to shop anywhere else. I don't care how well marketed the device was, if the Amazon store was not keeping people happy, Kindle would not be holding the market share it holds.
That, plus the fact that stripping DRM and using those Adobe ePubs on the kindle is, for the moment, trivially easy for those inclined to do so.