Wii U sold 9633 units in Japan last week, according to number-cruncher Media Create (via NeoGAF). Vita sold 11,456 units - the handheld's highest weekly tally for some time. The bump is probably due to some stores acting early on the recently announced Japanese price drop.
That discount isn't supposed to go into effect until tomorrow, so expect Vita numbers to be higher again next week.
By comparison, PlayStation 3 sold nearly double - 18,529 - what Wii U managed. And as in other weeks, 3DS was miles ahead of everything with 74,729 sales.
Source - VG247
Oh god. We know we are in trouble when the PS Vita starts outselling Wii-U.