Forgive me if this was already posted, but this is what is being reported over at Joystiq.com:

Kiss your loved ones, hug your friends, because if this keeps up we've reached the end of days -- the Xbox 360 outsold the PlayStation 3 last week in Japan. We'll break down all the numbers in our weekly Japanese hardware sales post later today. For now (while we pack our towels), the Xbox 360 sold 17,673 fueled by (raise an eyebrow) Namco Bandai's Ace Combat 6: Fires of Liberation, which debuted at the #2 spot behind Super Mario Galaxy.

The PS3 sold 17,434 units compared to Xbox 360's 17,673, a slight 200 unit separation. But to just give an idea how dramatic the increase in sales was, the previous week Xbox 360 only sold 3,718 units, increasing its sales almost five fold. Repent while you still can.

that news was sort of posted here: http://www.vgchartz.com/news/news.php?id=623

but yeah, that's crazy. I never thought I'd live to see xbox be anything but last place in japan. good news for them i guess but i doubt they can keep it up.

I think everyone would have agreed that it was impossible for them to sell to Japan. Japan is certainly full of surprises recently.

Wow, I didnt think that Ace Combat would make such an impact.

So the 360 continues to crawl to that 500K mark....... 

Also, this week, the Xbox 360 passed the Xbox LTD in Japan according to Famitsu....

i reckon that kinda of bad cause didn't 360 have a serious price drop in japan and only 17 thousand