One of my favorite games last year was Assassin's Creed: Brotherhood, and one of the cool things that came with the collectors edition was a concept art book. Today while reading Kotaku I came across a link to the concept artists Donglu Yu's blog and found they make excellent Android wallpapers.
The panning affect when moving between workspaces is really cool, and below I tried to replicate it with a few screen shots from my rooted Droid. I should also note that I used my excellent Chrome cr-48 netbook and the cloud photo editing site Picnik putting these images together.