IV at MTV

'GTA IV' Developer Talks Delay, Violence, 'Hot Coffee' | Game News Story | Multiplayer Gaming | MTV News:

This is a different kind of "GTA," he said. "This is the story of an immigrant, and we feel that this world is so real and has so many details that you are the immigrant. The player is the immigrant. So you're kind of coasting along with [protagonist] Niko [Belic] in sort of a way that hasn't been done before in our games. The pacing is different. We're not giving any of that away yet, but it definitely sets up the story and the mood ... in terms of the choreography and the flow of this game, I think there's something really special there that we haven't quite done with other games that I think are going to surprise a lot of people."

This is pretty much the only article to read, if you want a hint of what's coming, and not a freaking play-by-play of what was demonstrated.