I got riddick on friday, i had to leave for the weekend later in the day so i didnt get to play it for more than a couple of hours but damn, its good. I agree with cockles, its nothing that hasnt been done well before except maybe the hand to hand stuff, Thief has most of the stealth elements and even if it beat Thief 3 to dynamic lighting it didnt beat splinter cell, but it does them both briliantly, the way the screen goes blue to tell you when you cant be seen is fantastic i played through the first hour without even realising i could shoot out the lights then got into a position where i needed to sneak around and looked at the light and suddenly remembered that i could do it. That makes it a great implementation in my opinion because it doesnt force me to use it, just gives me the choice.
This is definately a great year for FPS lovers no matter what you look for in them.