Nintendo has opened the official site for Kirby Wii. Access it here. There's not much in the way of content yet, but there are lots of things that go click.
The site highlights the following points about the game:
- It's side scrolling and can be played by anyone
- Up to four players can play together simultaneously
- Kirby has powerful super abilities this time
- Kirby and friends are out to fix a space ship that fell from the sky
These's an introduction movie in this section of the site under the far right tab.