gorgepir on 15 October 2007
You could always count Wii sports as a 60% attach rate. This is the attach rate of Wii sports in Japan were it is not bundled. I think it is a fair ratio. So you could say that the Wii has sold aroun 15,550,000 software units which is still higher than the PS2. That is in other words is around 3 games per console, while the attach rate of the Xbox360 is around 3.31 per console. I don't think that is too far.
