Creating Digital Books

I am preparing for a workshop on creating eBooks.  I will demonstrate Apple iWork Pages, iBooks Author, and SoftChalk.  My special interest is creating interactive books.

• iWork Pages will save a file in an ePub format, which can be viewed on mobile devices.  The downside, is that the digital books are not interactive. 
• iBooks Author is my choice of platform.  The updates to the free software make it very easy to create interaction.  The downside is that you must use a Mac and that the books are available in iBooks Author for iBooks.  You can save the books as a PDF file, but then you lose all of the interaction.
• SoftChalk is a great tool to use when creating online lessons.  You can also design eBooks with the software and save them in an ePub format.  Although, SoftChalk indicates that there are a variety of interactive tools you can use with the ePub, I was able to only to create a one item interactive quiz.  Drag and drop and timeline revealed raw code.  I reported the problem.  The SoftChalk ePub feature is in beta development.  The other downside to SoftChalk is that the software is not free.  I am able to use it because our University has a site license.