Try & edit the video in the post & please be nice about Gian don't post something like that, as soon it will be on the main site and we do not want any flames from his fans.
Most, if not all, of this video has been taken from the official Pokémon site, if I remember correctly. English text, as well as some special effects, were added to it.
I think this is from the Nintendo Channel. Had I been near the Wii yesterday, I would have personally checked (and recorded to a separate YouTube channel) the ad myself.