Last paragraph: "And with that, he just about wrapped up his year."
The paragraph you actually reffered to is rehashed material for any console since time began. There's never been a console or computer that was used to 100% potential, ever. So you're right that it's too early to compare hardware potential, but it's not too early to compare hardware as games are using it now. Right now, its complexity may be to its detriment until developers figure it out. There's less of a learning curve on alternative systems.
As for the core duties: Sound, yes. Wireless, very little. Internet/networking, yes. But you forgot AI and Physics, big yes. Larger number of more complex units, yes. More complicated world geometry, yes. On the fly deflation, decoding, decryption, yes.
There's a lot more that these processors can and will be doing, but they could help a bit with graphics on the off chance that one of these things is twiddling thumbs. Though honestly, if the developers are directly off-shooting graphics duties to another proc any time soon, they really aren't using the GPU, let alone the rest of the system, to its partial potential. Even the 7800GTX is capable of a lot more than it's doing on the PC.
Sorry if anything doesn't make sense. It's 2am.
