Shack: In terms of next-generation development, you've responded to certain companies' claims that next-generation costs and development time will raise to unmanagable levels, saying that Epic doesn't see as great an increase in team size and budgets. Still, budgets are rising to some extent, team sizes are rising to some extent; how do you see that impacting general development for you and the industry?

Mark Rein: We're certainly doing more complex art now. We have the ability to put a lot more polygons on the screen, we have the ability to put a lot more shaders on the screen, we have the ability to make more expressive characters, which means animations have to be much richer. We have the ability to do way more immersive environments, so a lot more energy gets expended there. So what we've done is develop systems within the Unreal engine, like our Unreal Kismet, like our particle system, like our visuals-based material system, to make us much more productive on the other side of the coin: not just on programming but on gameplay, concentrating on being able to make fun game systems as well. So we've reduced a lot of complexity there, we've taken away a lot of the bottleneck that is programmers. We've moved our programmers to be focusing on the much bigger, much more complex, much more effective problems they could work on.