PS Vita is again undertracked in North America (NPD sales)

[Mr.GameCrazy]

Dr.Vita said:

zorg1000 said:
Wow ur really stretching now, we don't even know how much 3DS sold in January, meaning that 39% figure is useless.

If we go with the 3DS VGChartz sales, Vita is definitely undertracked here! 

Well we need to know what the NPD sales are for the 3DS before you can be sure of that.