And if you go to vook.tv, you'll see that:
"Authors and Publishers [April says: are publishers so important they deserve their own capital letter?] will directly benefit from this new distribution platform.
New sources of revenue [good luck with that one]
Higher value offering over traditional eBooks [Maybe I'm really old, but "traditional" seems a weird word to apply to eBooks, seeing as how people haven't yet agreed how to spell the dang things]
Richer storytelling experience [seems possible]
Turn-key media solution [buzz words that really mean what?]
Effective social media marketing [how?]
Direct fan engagement [I like to think of them as readers, but I guess that's another "traditional" word]"
So what exactly is a Vook? "Last year, considering the opportunities that e-book devices like the Amazon Kindle might someday create, Mr. Inman wrote his own thriller, “The Right Way to Do Wrong” and got TurnHere to film two dozen short videos with actors that augment the book’s main mystery. He recently began showing his Vook prototype to publishers as a way to hook them and their established writers on the idea."
My guess is that it would be expensive to do this for most books. And would it really add to the value, or would it distract from the reader's imagination.
You can read more here.