User blog comment:HaLo2FrEeEk/Full Dawnguard playthrough coming Tuesday!/@comment-4058895-20120625083355/@comment-124.186.114.184-20120625105458

PS3 can't get any DLCs before 360 users (which I am happily one of) because of the exclusivity agreement that Bethesda has with Microsoft. New DLC content must be exclusively available for the 360 for 30 days before the other platforms receive it.