I came across these images on Digg and decided they would make beautiful iPhone Wallpapers. To install them, just load the images into iPhoto and create a folder named "iPhone Wallpapers." Then sync your iPhone so that these images get placed on your iPhone. Then you can go into the settings and change your background to whichever image you please.
I also added them to the iPhone Wallpapers group here on flickr. Be sure to check out all the great backgrounds there too.