Reliable sources close to Nintendo have told CVG that Super Mario Galaxy and Metroid Prime 3: Corruption on Wii, and Legend of Zelda: Phantom Hourglass on DS will not see light of day until Christmas 2007, which could mean anything from October to December.
CVG called Nintendo about the delays, and was told us: "We never confirmed a date for Super Mario Galaxy, but I can confirm that Mario Galaxy, Metroid Prime 3 and Phantom Hourglass will all release in 2007. We can't confirm an exact release date for any of these titles at this time."
