Apple has just published that Ibooks author is no longer updated for a new version … and is working to improve on apple pages … I need to know that hype is already planning a project … Alternative to create a widget for pages with the format EPUB or hype create new epub format to work much easier and faster.
Unfortunately Pages does not fully support the epub 3 standard in that they don’t support the embedding of any .html file types in books..
This might be something coming soon since it is a feature in iBooks Author that they can port over. Until that time, I recommend working with regular iBooks Author if you have Hype documents you want to place in epubs or with Indesign.
The production of interactive textbooks was a huge initiative by Apple (under Stave Jobs) and I would love to see them continue to improve their tools.