Seems like it should be obvious that the 360 uses a much more traditional architecture than the PS3. It doesn't mean the 360 is "tapped", I'm still able to be impressed by what people have done recently with a Commodore 64. However, it does mean that we'll likely see a lot more improvement from the current games on the PS3 in 2 years than we will on the 360 in two years, based on where each system is now. I might even say the 360 is actually better at this point, but who knows where they'll be in a couple years. If the PS3 architecture plays out it might make the 360 look like a joke, but there's no proof that optimization will play out the way PS3 fans think it will.
However, the fact that the PS3 has even been able to keep on par with the 360 at this point does indicate that even if the PS3 never ends up making the huge leaps people expect the Cell to provide, it's pretty unlikely that the 360 will ever conclusively surpass the PS3.
