Sounds like the "amazing" video of a ps3 exclusive that the BBC reported they saw a few weeks back.
Edit: Here it is:
So what else was I shown? Well, I was shown a trailer for a game not due out till 2009 but was sworn to absolute secrecy. Apparently, Sony just wanted to give a glimpse of what the console will be capable of.
In fact, the game is such a secret that when I mentioned the game to Phil Harrison last week he was unsure at first whether even to admit the title existed. When I explained I had been shown it under strict Non Disclosure Agreement terms he looked relieved.
I don't mean to be a tease - all I can say is that I was left speechless. If the footage I was shown truly is "in game", as told to me by the Sony PR people, then we could be on the brink of a step change in what games consoles are capable of in terms of story-telling and immersion.
In that article he also broke the news that MotorStorm 2 would take place in a tropical setting, and he claims to have seen a Resistance 2 trailer as well.
