This plus a text-to-speech/audiobook feature with autoscrolling would probably do a lot for book consumption (I mean I, for one, would sign up for that waitlist)
Oh, to clarify I was not putting forward the idea of "the audiobook", but rather, having the book read to you as you're reading it (with your own eyes), just because I've heard multiple people mention how it helps them keep their focus on the page.
It's just an experiment in additional stimulation basically.