I second that request too.
I'm not sure that it will be closed, or at least that a work around wont be available. In the same way you can get FrontRow to play non-standard codecs, from non-local sources just by using a combo of aliases and work arounds, you could do the same for apple tv (its frontrow in the box).
Perhaps you could create an entry in iTunes for Bookpedia, and create each book as a cd. That way you would get artwork etc, and it would show on frontrow/apple tv.