Carmack frees Quake on GamesRadar is a Q&A with the id Software Technical Director about Quake Live, id's upcoming free shooter (thanks Voodoo Extreme). Along the way he offers thoughts on Crysis, expressing an interesting perspective from someone who has spent so much time exploring the cutting edge of game engine technology:

Obviously, we have examples like World of Warcraft that show how the PC can be viable and vibrant in its own way. But in terms of first-person shooters, if you look at something like Crysis and say that’s the height of what the PC market can manage, I don’t think that’s necessarily that exciting of a direction for the PC to be going in the future. With Quake Live, we hope that there’s an opportunity for people who’ve never played shooters to give this a try, and with that, the potential of actually growing the PC gaming market. I still have a lot of a faith in simple gameplay formulas - it might not be the game that everyone plays for three hours a day to be the best at, but it’s something that offices, dorms, and schools across America can have fun with.