the same model. The one of the left was made with RepG and the one on the right with MakerWare. For some reason RepG got all the details backwards. It raised the recessed portions, the recessed the raised portions, I don't know what is going on. To be sure the original model is far from clean, there's a lot of detail that even resisted netfabb's attempts to fix.
Now that it works I need to make one just a little bigger and make it out of glow-in-the-dark filament. Then I can blow your mind with rock.