Since Kobo is involved with Readium, I have high hopes that the KePub format will eventually go away or become a secondary format for older devices and Kobo will use EPUB3 features in place of the KePub extensions. KePub made sense in the context of EPUB2, which has no support for tracking a location in a book among other things, but EPUB3 has this and more. I don't believe there's anything a KePub enables that isn't covered by EPUB3. EPUB3 even has a draft spec for a standard digital restrictions mechanism scheme, compliments of the Readium LCP draft, which should keep happy anyone that still thinks that sort of thing has any benefits.
Last edited by jgoguen; 07-18-2013 at 07:15 AM.
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