GameSpot has posted an interview with George Harrison, Nintendo of America's marketing and communications senior vice president. An excerpt is below, however the full interview can be found here.
GS: They are putting a lot of emphasis on power. But USA Today said that the Revolution is only going to be two or three times more powerful than the GameCube. Can you give me those details?
GH: Yeah, well we haven't released any of the technical specs. We're working with IBM and ATI, so certainly all the capability that we need is there right in our development partners. We try to figure out how to strike a balance between giving the developers everything that they need to make great games, and not having it be so much that they have to spend inordinate amounts of money. In the end it has to be a business. Publishers have to be able to create the game and sell it effectively, and be able to then support the next game.
GS: So do you think that's really going to ramp up more third-party support for Revolution? The fact that it's going to be easier to make games for than the Xbox 360 or PlayStation 3?
GH: Well, we hope it will and, in fact, it's really important to us. There's some games that we do extremely well, our game franchises obviously, but there are others that we don't do. I think if we look at the GameCube and say, "OK, what's one of the things we missed in this generation?" Well, we really didn't have the Grand Turismos or the Grand Theft Autos, so those are the things that the publishers with their particular expertise can really fill in the gaps on, and that's important to us.