As pointed out by Source recently the PS3 has actually, time adjusted, been outperforming the 360 from launch until the most recent 360 price cut. Another useful Source article shows clearly that Sony/Nintendo have almost exactly swapped marketshare so far this gen.
It is the Wii, not the 360, that has taken the PS2 install base. The 360 is doing well continuing to grow the demographic the Xbox first appealed to, and has no doubt expanded a little beyond that. The PS3's problem isn't so much the 360 as it has ended up being seen, due to price and features, as an alternative to the 360 for some, and a too expensive new playstation vs the Wii's price point and features for others.
The 360 is of course hampering the PS3 with the online shooting crowd globally, but it is the Wii that's doing the real damage, and to ignore it as the author does shows he too has fallen into the trap of seeing the fight existing between the two HD consoles.
The fight for the top was with the Wii, and so far both HD consoles have lost. The only real edge the 360 has is a low enough price to keep it somewhat in front (time adjusted remember).
Try to be reasonable... its easier than you think...
