Skum.. Who cares if the Xbox gets Doom III and Wolfenstien..? Playstation's just fine with MoH and Red Faction..
Doom and Quake and all of those are kinda getting like the "Rocky" movies were, to me... You want them to stop, but there's always some putzes that will buy anything with the name on it. Let the series die in peace, man..! FPS's don't exactly have the most stellar remake value as a standard.. these had pretty shallow plots anyway..!
EDIT: ..um.. I'm pretty sure Sony has more than twenty developers!