Vita beating Wii U. for Christmas. No idea on numbers but I'm guessing he's expecting the wii u to continue with it's normal holiday bump and the Vita to continue to do what it's been doing (staying reasonably consisten.
Just did a quick calculation in my head (rounding to the nearest 1k):
Vita is 73 000 ahead of WiiU
3 weeks left so the WiiU needs to beat the Vita by 24k each week.
Anyone taking any bets this seems close.