Both mediums can merge! (Although it’s a wee bit labor intensive).
Fascinating short from a Polish arts academy project. Finally, an e-book format I could get behind.
Elektrobiblioteka / Electrolibrary from waldek wegrzyn on Vimeo.
There’s a manifesto at http://www.eyemagazine.com/blog/post/electro-library-dreams. (Of course, there is.)
A Few Reasonable Words 
Meh. I’ll stick with the iPad.
Just a wee bit??