I think that change has already occurred. But I think it preculdes the idea that someone in their 30's, like myself, will always enjoy games like Chibi Robo and Jak and Daxter more than GTA or Gears. I don't think the seperation will be as much a great divide as you might think. Perhaps, even, this age bracket that you refer to could be flip-flopped. That is, while those mature games are created for adults, it will be the kids that will be playing them. And conversely, the adults may find themselves getting more into the surrealistic pillow that is Nintendo and thair patended brand of cuddly games.