"It of course does not mean that we are going to use exactly the same architecture as Wii U, but we are going to create a system that can absorb the Wii U architecture adequately. When this happens, home consoles and handheld devices will no longer be completely different, and they will become like brothers in a family of systems."
Reading this most people assume it's about CPU? Is that the only architecture you people know. If it is about bringing handheld and console more together, I assume it is more about the inputs. Meaning a second screen with touch inputs.
Also I don't understand the fears and hopes about choosing the CPU-architecture. All three architectures that would be viable today (ppc, x86 and ARM) are OK for consoles. The consumer (gamer) isn't affected at all by the choice of CPU-architecture, the only thing is backwards compatibility. But porting isn't hindered by different CPUs, that's what a compiler is for. Even the choice of the GPU has more impact on porting (although still small), as Nvidia and AMD have different (but similar) APIs.