3DS
jp February 26, 2011 - 40 weeks
eu March 25, 2011 - 36 weeks
us March 27, 2011 - 36 weeks
=9.8M
Wii:
NA November 19, 2006 + 36 = July 28 = 3.62
jp December 2, 2006 + 40 = Sept 8 = 3.52M
eu December 8, 2006 + 36 = Aug 17 = 2.87M
=10 million
3DS will almost certainly rocket past the Wii next week because next week the 3DS will most likely sell in the million range again - its largest game, Mario Kart debuts in the US. So 3DS sold 935K this week, meanwhile the Wii at the aligned period is selling 220K (US-100K, EU - 87.5K, JP - 33K). By the end of this year, the 3DS should have a fairly dominating lead as the fastest selling videogame system. Not bad for a system which "flopped at launch" =)