Separate names with a comma.
Found this on from http://ipadwallpapergallery.com/ and there it says the creator is this guy http://www.flickr.com/photos/flikr/.
If you find something good let us know. I would also like to have a app to change the wallpaper automatically.
I've been using iPad Wallpaper Gallery. All the images they got are in 1024 x 1024.