"After browsing around the gaming area at Target, I've spotted one of their reservation cards for Gran Turismo 5, indicating a March 30th release. Although there have been reports of the game being delayed until Autumn of this year, this could be putting those rumors to rest."
On Target's official website, they have a release date for June 29th of this year. I've also missed the 'Game release date subject to change.' bit on the bottom. I suppose the game really is releasing this Autumn... :-(