"Avatar: The Burning Earth" is scheduled for release sometime this fall.

More info at this article from Nintendo World:

http://www.nintendoworldreport.com/previewArt.cfm?artid=13605

Sigh. I'm not rushing out to buy a Wii simply to be able to play this game. I guess we can get a DS version from our kids to play on their DSes. I don't know what platforms outside of Nintendo that it will be available for yet, or if it will be at all. All I know is the info from Nintendo World.