@markm: I read the article that you linked and he said that traditional single player games would be gone in 3 years, he didn't say single player games would be gone completely or single player is dead. He gave the message system that you can leave behind in Demon's Souls for other players as an example. He mentioned of a shift from a single player only experiences to connected single player experiences and in a way have started to see that a lot in recent years (e.g. seeing the times your friends set or the number of points scored by friends or other people in missions, etc.).
no he said Mario was dead.