first off, who cares what the valve guy said? who cares what hiphopgamer said? i feel that hhg is getting referenced way too often on these boards. not every personal blog/rumour site is worth linking to.
ps3 is surviving (perhaps on life support) without valve. even if valve's games were ported, it wouldn't make that much of an impact on the ps3's user base because it's would be multiplatform at that point. all this complaining sounds like sour grapes, tbh.
also, i've seen $20 million spent on development for killzone 2 used quite a few times. i'd like to see an official statement on that "fact". it really weakens your argument when throwing that "fact" into the faces of people who are raving about a game that they haven't played yet - because some of them have played the beta and at least there are professional reviews (take with however much salt is required) to back their claims of grandness.
i just recently got over fps motion-sickness so i haven't played any of valve's games other than left 4 dead - which i find fun but not revolutionary or goty material. i'm glad to hear that KZ 2 is stealing from TF class system because it always seemed like a really cool idea to me.