Word on the internet is that the New Super Mario Bros Wii is, in a matter of speaking, amazing. Two more days until the game officially hits shelves and while there is no talk or hope of it breaking street date like a certain first person shooter, it won't really matter. Anticipation has been building up all this time since it's announcement and one thing is for sure, nobody will be displeased.
Check out the review, gameplay/review video, and a few other links that will hopefully whet the appetite for this game.
You might (or might not like):
Kotaku: NSMB Wii Review: Go Buy a Wii
Giant Bomb: Quick Look at NSMB
Examiner: Wii Kind Code
Examiner: NSMB Wii: Abilities and Items
Examiner: NSMB: Harder, Better, Faster, Stronger?
Examiner: NSMB Release Party