On a long enough timeline, I suspect the Wii will surpass the PS2 easily enough. There's this continuing misconception that Japanese Wii sales are somehow free from the worldwide shortage of the system, but that's simply not true. Japan gets the smallest shipment of all the regions, and the least advertising too (most notably in the form of not having Wii Sports packed in with the system).
At this point, Nintendo is basically sacrificing the Japanese market (which is the smallest) to capture the European and American markets (which are the largest). Their product is still one-of-a-kind enough that, once they shift their attention more to Japan, they'll be able to capture the market and have sales take off easily enough. The only thing really necessary for that to happen is a combination of more systems in stock and more dedicated advertising.
Sky Render - Sanity is for the weak.
