To those who don't understand my 60 million in 2008 prediction

[Final-Fan]

Requirements for Avinash_Tyagi's predictions to come true:

Sales of Wii Fit will surpass the combined sales of the Grand Theft Auto franchise
Total GTA sales were 65 million as of last August. Wii Fit probably needs to sell x>80 million to fulfill this prediction.

Lifetime sales of Wii will surpass the combined sales of the entire Playstation family of consoles by 12/31/2015
PS1~100m; PS2~120m; PS3>30m. Even ignoring the PS4, the target is above 250m, so the Wii will need to average over 2.4 million per month.

Wii hardware sales will surpass the total hardware sales of the PS2 by 12/31/2010
PS2 ~ 120m. Current Wii ~ 20m. Wii would need to average 2.78 million starting NOW.

Wii will have 50% marketshare or more by the end of 2008
This one has tons of wiggle room on predictions because it also involves predicting two other consoles. I'm not going to put words in A_T's mouth.  I will say that I concur with this prediction. 

Wii will surpass 45 Million in lifetime sales by the end of 2008
Current Wii ~ 20m. 45m by end of 2008 only needs ~2.2m per month average.

(Note that if we assume that the Wii has 50m by end of 2008, the necessary average to meet his 2010 goal becomes over 2.9m per month in 2009 and 2010.)