The Slim PC is a concept design for a small computer by designer Chang-Su Lee. Featuring lovely dark wood and a built-in iPhone dock, it's one of the most beautiful computer designs I've seen.
It looks like it'd make an excellent home theater PC, what with its tiny footprint and handsome stylings. I don't think there are too many other uses for small, modestly powered standalone PCs anymore, what with laptops eating their lunches for everything else, but I would definitely stick this thing under my TV. If it were real, that is. Alas!