The product is superb, simple to use, and very user-friendly - congrats!
I have the following suggestions:
1. An international character set asap for Comments section.
2. A blank page insertion facility that could be used for writing textual information (with international character set!)
3. How about a book type fliping facility that could be selected by the user? with Themes selections for the front and back pages?
Kind regards and keep up the good job!