I set mine to run Compiz and got it to display different backgrounds for each face of the cube:

http://anadheryn.deviantart.com/art/The-Iron-Cube-93086751

So the default one that comes up, which I made is this:

http://i161.photobucket.com/albums/t208/sodalicium/credit-wallpaper.png

And one of the ones on the other side of the cube that didn't get pictured in the first image is this:

http://i161.photobucket.com/albums/t208/sodalicium/Desktop2.png

I'm not upgraded to Jaunty yet, because I'm made of fail and never even got upgraded to Intrepid.