You know, after saying almost everything that can be said about a subject, and presenting it in an awesome way, saying "what do you all think" isn't really going to get any more info in.
Well, I actually have something.
Through March 2007, Sony had shipped 1240M software for the Ps2. http://www.scei.co.jp/corporate/data/bizdataps2soft_e.html
That means we can expect it to end at ~ 1.3B software.
Do you really expect the Wii to sell almost 50% more than that (median of your projection).
Looking at it like that, your projection for Wii seems a tad high... I'm not really sure...
Edit: Added a link to my Ps2 shipment claims.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS







