Assassin's Creed II and Silent Hunter 5 have both been removed from Valve's online store Steam in the UK. A spokesperson from Valve has been quoted to say that it was because of "customer service" concerns, but Ubisoft denies that it has anything to do with the DRM that both games come with and that the whole thing has got to do with a "local business discussion between Ubisoft and Steam in UK".
I started up Steam here, so if Valve care about their UK customers so much that they take down Assassin's Creed II, they seem to hate us Swedes since the game is currently splashed all over the first page. Like so: