This has been said four trillion times: the PS2 information is missing the European data, Leo. Which means the PS3 is slightly undertracking the 360, and significantly undertracking the PS2, which only has two regions worth of data to cull from.
See how there is no graph for "PS2 total other?" That's because there is no data for that region and console! In effect, the PS3 is undertracking the PS2, even though the PS2 data includes the entire world and the PS3 data is JUST America and Japan. Look at the two graphs that are available:
The PS2 had about 3.5 million systems sold in the US at this stage in its life, while the PS3 has about 1.75 million. The PS3 is selling about 50 percent as quickly in the US.
In Japan, the PS2 had about 3.2 million consoles sold at this point, while the PS3 has 1.1 million. It's tracking at approximately 33 percent the speed of the PS2 at this point its lifespan.
Those figures are cause for concern.
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