If you've always wanted to play with an adorable god-puppy, sir, today is your day to make that wish come true. Joystiq reports that a demo for Okamiden is available now on the Wii's Nintendo Channel in North America.
To download the demo, open up the DS Download Service tab on the Nintendo Channel and select the demo, then select the Download Play option on your DS. The demo promises lessons on how to use the celestial brush as a primer for the game, though the stylus controls seem like they shouldn't require much explanation.
The demo may or may not be available for more than a week, so if you want to try it out it's probably best to download it sooner rather than later. If you miss it, the full game is due on March 18.