I've decided to buy it, as a way of supporting developers. I liked the way it all works (disabling publisher styling is the first thing I do in any new reader!) and when we have author subfolders/pages I'll be over the moon. For an example of how it might be done, check out Shubook. I would have said check Stanza, but you can't anymore, unless you already had it and have stored its .ipa carefully somewhere as I did