The launch lineup is high quality, and, if priced reasonably with plentiful SW (most likely looking at 3DS):
Y1- 8mil
Y2-11mil (19)
Y3-16mil (35)
Y4- 18mil (53)
Y5-15mil (68)
Y6- 12mil (80)
Y7-8mil (88)
Remainder- 15mil (103)
So good and market leader, but will finish below the Wii, but with a more sustainable, but slow, selling curve.
Note how my predicted years are each 12 months, not calendar.