After using the Wallpaper Script for a year, I think it is superb. However I have a few moans for you.

Is there a way to display wallpaper thumbnails in a portrait orientation - ie for a phone wallpaper website? If not, it is something I would love to see in a future update.

It would also be handy if you could clone modules. The current setup is a pain when you have a lot of modules with identical settings. Why not just clone or duplicate them?

If categories were created in a Wordpress, drop down menu style, and assigned parents etc, it would save me a lot of dragging and dropping.