The TS kind of beats his own point by saying the 360 sold over 40 million, with VGChartz having that lower aswell lol. But seriously that's shipped, but it is kind of a big difference.
As has been said before, PS3-360 gap is probably around 4.5 million right now. Also the ''gap'' is become less and less relevant over time anyway, since total numbers for both keep rising. 4.5 million is getting closes to being less than 10% of the PS3 total install base anyway.