Update: Assassin's Creed A.I. on the PS3 and Xbox360 exact same

"While the PlayStation 3 and 360 versions of Assassin's Creed are virtually identical, Raymond did say that on the 360 the team is putting a special emphasis on Achievements. And while the 360 hardware enables Ubisoft's team to use multiple threads to enhance the crowd's AI, the end result for the game on both systems will be the same. "While the method for distributing AI load is different on each platform, the AI code itself is the same. Players will experience the exact same crowd results on PS3 and Xbox360," Ubisoft explained."