InterfaceLift for webOS makes finding awesome wallpapers easy
You can browse or search images by creator or tag, or just flip through all the available images sorted by date, downloads, or rating. The app can also access your InterfaceLift favorites. Once you find an image you like, just tap it to go full-screen -- where you can then set it as your wallpaper.
InterfaceLift for webOS is a free download from the App Catalog.