Quote:
Originally Posted by teh603
Just this once I'm going to reverse my usual stance, and say that the standard wasn't viable to begin with. The vendors are simply trying to get something usable out of it.
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That would be my guess, too.
That is how we got HTML out of SGML.

(But the followers of the Holy Church of ePub transcendant will likely disagree with us.)
The fact that Adobe has nothing in the way of a shipping epub3 solution (going on two years, no?) suggests that a full implementation of that spec is really, really hard. But vendors need to sell *something* now. Hence the enduring presence of epub2 and the emergence of iBook and KF8 and the various proprietary fixed-layout formats.