Quote:
Originally Posted by Hitch
on Amazon, it's more like...if you built it in ePUB2, it works.
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That's excellent news.

And if Amazon's more recent devices can do it, so should all other devices and e-reader apps, even if it's just EPUB 2. Moon+ Reader on Android has already followed suit. I don't care if it's just "heuristic guesswork" on the device's or software's part – if you can pop them up, just pop ’em!
(Though, as I've mentioned a couple of times, I believe this should be a book-specific preference left up to the reader's choice: the reader should be allowed to decide in what manner he or she wishes to view footnotes. Some readers might be delighted by popup footnotes, but others might hate them. There should be a way to switch popup footnotes on or off, on the fly, on a per-book basis; a toggle button, or as I've been suggesting in this thread, a
4-way toggle.)