You want top-end performance, not caring about price or power consumption? Buy a 5970. The 480 is not going to be faster.
But I believe most people do care about price, and a significant number about power consumption or extra features (DX11, PhysX, Eyefinity, 3D Vision etc.).
Anyway this thread is not to discuss whether the 480 is worth buying, but only whether he is credible enough to believe the next time he writes an article. For example, the GF108 article said August. If he's credible on GF100, then we can believe that date. If not, then not. It allows us to know Nvidia's plans a few months to a year in advance.