Can the 360 retake the lead from the Wii?

[superchunk]

True, 360 has beat Wii in NA, but not WW, unless Japan's numbers are horrible, Wii will still be top dog in September.

I think December might be the only month Wii does not win WW and that may be due to a shortage on units available. However, I am putting this in a big pretty if basket.