Yesterday's NPD announcement that New Super Mario Bros. Wii had sold 1.4 million copies in the November NPD period was impressive. But Nintendo topped it today by noting that, including sales after the NPD cutoff date, the game has reached a total of two million copies. It's not Modern Warfare 2 or anything, but it is a very strong start for a game that is likely to have a very long tail. Even just in November, it easily beat New Super Mario Bros.'s first month on DS (which, admittedly, was May and not November). Nintendo also announced that the Wii has reached a US installed base of 23 million, and that the DS broke the November handheld sales record set by ... the DS.