Nintendo of Japan has started airing the first Wii commercial, and it is a little abstract to say the least. Nintendo is probably intending this to act as a teaser for the upcoming release of the Wii. A loose translation of the commercial would be:

What is this?
This is a new remote.
The Nintendo Wii Remote.

One would expect the US advertising to be different than those in Japan, but since this is clearly just the beginning of a larger advertising campaign, it is hard to tell where Nintendo of Japan is going to go with these ads.