The 360 a software monster? The Wii a software wimp? I don't think so...

[theRepublic]

BHR-3 said:
i dont get the whole TWO i have to check it out some other time wen i have more time but did u factor in the wii sports that comes with every wii i know the hds also had bundles but you need to come up with some kind of % to take out for the wii sports maybe like 75% I dont know something

TWO is calculated like this...

For the 360, we are currently in week 175.  The number of consoles sold in week 1 are multiplied by 175, week 2 is multiplied by 174, week 3 is multiplied by 173, ... , and finally week 175 is multiplied by 1.  Then the results are all added together to get TWO.

As for Wii Sports, it is included in the software totals for this site, so yes I included it.  The reason I did not take it out is because Wii Sports is one of the most played games according to the Nintendo Channel data.  Wouldn't people just keep playing Wii Sports instead of buying more games?

EDIT: http://vgchartz.com/forum/post.php?id=1849933

Wii Sports is the 7th most played game and is 3rd in number of sessions.