During the most excellent writing meetup on Sunday there was a discussion
of creating ebooks (as well as a discussion for creating physical books -
which would be AWESOME!)
Here's some links to apps that help author ebooks.
http://demibooks.com/composer/
http://www.coronalabs.com/i-want-to-build/ebooks-comics/
http://www.redjumper.net/bookcreator/
on the Mac there is iBooks Author:
http://www.apple.com/ibooks-author/
and here's a list of more ebooks authoring apps:
http://www.educatorstechnology.com/2012/10/excellent-ipad-apps-to-create-eb…
Writers, start your creative engines!
cheers,
ray