OnLive has turned up the graphics settings on Batman: Arkham City. They turned up shadows, lighting and textures. You can see shadows and rays of light from the moon! Lights are glowing, you can see water under the ice, textures are nice and crisp. You can now also see stubble on Batmans face.
So, everyone who hasn't played Batman: Arkham City or wants to play it again, go try out the free demo of Batman: Arkham City.