When EPUB 3.0 was officially unveiled at the Frankfurt Book Fair in October, 2011, it was taken by many as the spec to end all specs.
At last, we could really get to work creating ebooks with all the things we’d always wished for — basic things like the sophisticated typography and layout we can do in print, and beyond-print features like video and interactivity — as well as some things we hadn’t thought to want, like global language support and rich metadata. Not to mention something we knew we should do but that was “too hard” before: real accessibility. Best of all, we could make just one file that would work the same everywhere…
The euphoria didn’t last long. Sure, EPUB 3 told us how to do all those things; but did they all actually work anywhere?
That was 18 months ago. Guess what? Progress happens.