Sony has switched gears and is leaning on 1st and 2nd party games which know how to develop for the Ps3. Naughty Dog has stated that they haven't reached the full potential yet and have made a guide on how to develop games for the console as well as offering help to other studios such as Guerilla Games during KZ2 development.
I don't think it was on purpose, seems more like Sony spin but their shift to rely less on 3rd party support was a smart move.







