Nintendo has finally seen it fit to put out their schedule of release dates for this year. Nintendo has also stated that the DSi will be released worldwide by Summer 2009.

Some of the standout titles include: Punch Out!!, Sin and Punishment 2, Mario and Luigi RPG 3, and Pokemon Platinum. Personally I cannot wait to get my hands on Punch Out!!. It will also be nice to check out the remake of the original Fire Emblem when it releases here next month.

Pulled Strait from the source article:

Note: titles without release dates are already available in the respective region.

DS
Mystery Case Files: MillionHeir (Feb 2 Europe)
Walk with me! Do you know your walking routine? (Feb 20 Europe, 2009 US as Personal Trainer: Walk with Me!)
Pokemon Platinum (2009 Europe, March 22 US)
Rhythm Paradise / Heaven (2009, Europe and US)
Mario and Luigi RPG 3 (2009, Europe and US)
Kirby Super Star Ultra (2009 Europe)
Fire Emblem: Shadow Dragon (Feb 16 US)

Wii
New Play Control! Pikmin (Feb. 6 Europe, March US)
New Play Control! Mario Power Tennis (March 3 Europe, March US)
Punch Out!! (First half 2009, Europe and US)
Wii Sports Resort (2009 Europe, first half 2009 US)
Sin & Punishment 2 (2009, Europe and US)
Another Code R and Endless Ocean 2 (2009 Europe)
New Play Control! Pikmin 2 (First half 2009, Europe)

Source: Joystiq