It would be great if you could allow "authors" the option to ONLY manage "their" entry and not anyone else. So if they create the entry they can edit it or delete it but they should not have the power to modify other entries.
Another nice feature would be if you could drag and drop entries in any order you'd like so you can change how they display on a page.
And finally if you could group individuals information in a family mode so you could read the husband and wife's (and/or children) information together as a group.
Hope these ideas are helpful. I think the plugin is great unfortunately I needed a little bit more flexibility.