The guys from ShackNews had an interview with Dell. They mainly talk about the high-end XPS brand:
Shack: What does Dell see as the future of PC gaming, and how is the company preparing for that future?
Glen Robson: That's another great question, and I wish I had you here so we could walk you through the labs and get you hands-on answers to that question. The main thing for me, as a long-time PC gamer, is online gaming. World of WarCraft and various others are driving a whole new demographic for PC games. The online experience is pretty unique to the PC, it's probably the best in the world. We've got some incredibly high-end technology and interfaces we're thinking about. Between ourselves and Alienware, we'll continue to push technology boundaries. PC gamers just want in terms of everything, in terms of frame rate and graphics technology, in terms of physics, and you're just going to see more of that. The experience will continue to grow and become more life-like, and [be] centered more around communities.