Just a comment on the 'but here's this video from 2004/2005' defence that people seem to be using, does that pre-date the Wii? I mean, Wii was launched in 2006, and first talked about in like 2003/2004, and then we have the knowledge of Nintendo working on the next console from the moment they launch the preceding one (so 2001/2002).
At best you are looking at concurrent development.

VGChartz







