Fact: PS3 has closed the gap on the 360 by 2 million since it launched. 360 started with a 6 million head start over the PS3.
Aligning consoles from their respected launches the PS3 is around 7 million in front of the 360. PS3 is closing the gap on the 360 and it will over take the 360 in 2011 in total lifetime sales.