It is also interesting to consider, that from what we know, Wii can follow either the "PS2 model" or the "DS model"
http://vgchartz.com/hwlaunch.php?cons1=Wii®1=All&cons2=DS®2=All&cons3=PS2®3=All&weeks=258&weekly=1
The PS 2's sales increased for 3 Christmas seasons, reached its peak, and started decreasing significantly.
The DS had five gradually increasing Christmas, and from what we know, the next one can still bring new increase.
In other words: What is the reason behind the DS longetivity? The fact that it is a handheld, or that it is a Blue Ocean product?
If it is the latter, we can expect 2,5-2,8 million Wiis sold in this December, even bigger sales in 2010 December, and much bigger sales in 2011, complete with constantly shrinking PS360 numbers.
In this case, even 60% would be an understatement.
