It looks like that now Natal is on rail Ms want to milking the 360 till
2015
A 2013 launch seems more and more likely for their next system.
Between Ms is showing confidence in the legs its system have.
I read a recent analyst report, and I should probably try to google it and link it since I dont have it offhand, but I found it pretty interesting, the basic crux was, looking at consoles as game theory, there being a advantage to be gained by who jumps first into next gen. Only this time, they said they see none of the 3 players having any compelling reason to go next gen, so they dont see it happening for a while.
I totally see that. Nintendo is selling Wii's and making profit hand over fist, they have no reason to go next gen. Sony, trying to recover the huge PS3 losses, and with a high priced system that needs to come down, have no reason, and MS, comfortable with 360's position, and also trying to recoup major losses, and also with a historically still high priced system, has no reason either.
I think if either Sony or MS was killing the other, then the killee would feel pressure. But that doesnt seem to be happening. PS3 sales are fine worldwide relative to 360 given the price. For MS, despite there being an attempt to paint the 360 as aging, faltering hardware, they are competing in hardware sales with Sony just fine, probably better than most thought they would be at this point.