Just to throw a thought into this ring:
Look at Wii sales for the start of '07. They slowed a lot, then exploded after March was over. Why?
Nintendo's fiscal prediction - they will dry up supply of the Wii (esp. during March), to hit their predicted sales figures spot on - upp them for the next financial year - then release a lot more units starting April '08.
...
So I wouldn't extrapolate Wii sales for this coming year too heavily based on the coming 3 months. Wait till after March, and see Ninty's fiscal statement for '08-'09.
(that said, I don't see any chance the Wii will outsell the Playstation family lifetime - not in the next 5-10 years anyway - unless Sony decide to fold now!).
Gesta Non Verba
Nocturnal is helping companies get cheaper game ratings in Australia:
Wii code: 2263 4706 2910 1099