Call of Duty 4 on PS3. The date, November 9th, plonks it firmly in the middle of the "too many games!" season, with Ubisoft alone releasing two top titles (Haze and Assassin's Creed) during the surrounding weeks.
There's no word yet on an American release date, but expect it to be around the same time as the European release. Activision are maintaining a "Winter" release for CoD4, saying nothing more specific than that. November 9th is clearly a target date, so don't be disappointed if it gets pushed back. But as PS3 owners, we're used to that. Right?