360 Surpasses PS3 in Japan?

[footbag]

http://www.joystiq.com/2007/11/09/japanese-hardware-sales-oct-29-nov-4-once-in-a-life-cycle/

 Not sure if this is old news, but what happened in Japan that sold so many 360's?   Hell, 17,000 360's is like 6 months worth of sales in one month.  Or is is just the beginning of the Christmas ramp up?