It took a while, but Sony's PSP was finally able to top the Nintendo DS in sales last week (January 2-8) in Japan. As reported by Joystiq, this is the first time since April of 2005 that the PSP has outsold the DS. Sony managed to move 132,757 PSPs off shelves and the DS jumped into shopping karts 91,379 times.
Of course, numbers never tell the whole story. The DS was so hot this holiday season that Nintendo reported it had officially sold out in Japan on January 5th, thus bringing sales to a screeching halt in the middle of the week. Nintendo even went so far as to issue an official apology to its customers, saying more DSs will be available as soon as possible.
The bottom line is that Sony won the week's race, albeit against a competitor who's legs fell off, and also set a personal record beating its previous mark of 110 thousand units.