Got some big updates from Nintendo's Media Summit today...
Nintendo DSi XL: March 28th $189.99
Super Mario Galaxy 2 (Wii): May 23rd
Metroid Other M (Wii): June 27th
Monster Hunter Tri (Wii): April 20th
Sin & Punishment: Star Successor: June 7th
Some other games of note in the release, but these are the majors.
Oh, since it is in your list...
Prince of Persia: The Forgotten Sands: May 18th