nordlead on 07 May 2008
Ok, So I searched through a bit, and so far I've found the following
9 pages of video demos for Wii & DS, interviews of Iwata, info about Wii Fit, and other stuff. (so ~54 videos)
There are currently 8 DS demos.
You can even vote on games you've played for more than 1 hour, (essentially it is making a recommendation to other gamers). You input what gender liked the game the most, How old they were, how much you would recommend this, who you would recommend it to, and other information.
