Well, JL gets my respect for understanding the longevity of Wii demand. However, his outlandish Wii Fit predictions make me doubt his credibility.
I do believe he is close with his 60 million end of '08. But (just like my signature suggests), I think it will be closer to 50 million.
My End of 2008 Hardware Predictions (console only):
Wii : 50 million
360: 28 million
PS3: 24 million
These predictions were made on January 3rd and won't be revised