I have a print of M.C. Escher's Relativity hanging in my entry hallway. I absolutely love the man's work. His impossible perspectives excecuted so precisely that one thinks they might be possible, his tesselations and geometric transformations, it's all spectacular. So when I see that they're making a game based on the "physics" of M.C. Escher (or Oscar Reutersvärd, or Roger Penrose, if you want to get pedantic), I think that's just brilliant.
Take a look.