I'd be more excited about a really good self-publishing platform for non-interactive e-books.
A lot of the cost of e-books comes from publishers needing to support various paper-related overhead like binding, printing, etc. If it was possible for an author to self-publish I suspect it'd be very easy for them to equal the per-book profits (obviously, advertising would be a different story) that they'd get going through Harper-Collins or the like.
Oh, yes, you can. But I think its probably beyond the technical abilities of many authors.
If there was a cheap, e-book-only publisher around that could help with all of the traditional publisher duties (editing, typesetting, advertising, etc) without the overhead of actually printing anything (or at least with being able to print things on demand rather than buying a big batch and praying) I think there would definitely be money to be made.
The number of submissions that large publishers get every day has got to be staggering - what if a small company could dedicate their extra resources to actually reading through more of them than Random House can? The beauty of the novel that it is pure content, especially on an e-reader.
A lot of the cost of e-books comes from publishers needing to support various paper-related overhead like binding, printing, etc. If it was possible for an author to self-publish I suspect it'd be very easy for them to equal the per-book profits (obviously, advertising would be a different story) that they'd get going through Harper-Collins or the like.