New Super Mario Brothers Wii now coming November 15. Perfect time for a holiday release. This game will sell like if you could have a game that would make hotcakes come out of your Wii.
Splinter Cell: Conviction comes out for PC and 360 on February 23rd. Once a month only for so-so movie releases, February may contain releases such as Mass Effect 2, BioShock 2, Dante's Inferno, and White Knight Chronicles.
Finally, although not exactly a release date, Nintendo has announced that the Wii will officially be $50 off, and now retails for $199.99.