I just discovered that the page list supports hierarchical page structures, which is very cool. However, it would be better if you allowed the user to create folders as well. Of course you can simulate this now by just creating an empty page, but it would be much nicer visually if it would show folder icons in the page list.
You could even automate the display of folders by making it so that any empty page that contains subpages would be displayed as a folder.
