As long as numbers can be fudged upwards...there's no way PS3 can catch 360.
I just noticed that the numbers had been adjusted, so that now it appears that 360 has closer to a 6 million lead over the PS3 while previously it the lead had been dipping down towards the 5.0 million mark.
What we do know is that the PS3 kicked the 360's can worldwide during the Christmas holiday season '09. Also, the 360 was only able to extend its lead over the PS3 in Others in '08 due to two price cuts; however, we can see due to the 360's ability to gain any real dominance over the PS3 in Others through much of 2009 that the price cut still didn't give it enough emphasis to take any kind of commanding advantage against the PS3 there.
I don't believe the 360 advantage over PS3 is any more than 5.5 million units at this time.