Speaking of the differences from the consumer's point of view, the current situation is that one specific implementation of ePub, Adobe Digital Editions, is widely deployed on eInk devices. Adobe's own DRM scheme, hence, is available on a number of different platforms, giving consumer (still limited) choice when it comes to platform, and if he is unwilling to remove the DRM.
Both mobi and ADE (ePub and PDF) DRM schemes are deployed by the public libraries, but it seems that lately the number of ePub/PDF titles growth is stronger than that of mobi titles.
|