Epub is the same today as it was the day before Apple's announcement. You CAN'T accomplish with EPub the interactivity of the new Apple text books. Apple doesn't call it's new format "epub"....but .ibooks. It's based on epub, but it is not epub.
Apple still supports epub in ALL the ways it did before the announcement. Unlike the Amazon and the Kindle....Apple supports ePub. If you publish a book in epub...Apple's iBook at can read it. Apple's Pages still produces epub files.
The new interactive text books are not epub.
Lee
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