Nintendo just said that mario galaxy and metroid prime 3 won't be released until 2007 winter.
They also said they don't want to give out the exact release date but they know that those two games won't be released soon.
p.s. i guess this means wii won't have any good games other than zelda twilight princess for another year. They better release zelda Orcarina of time or mazora's mask so we can spend time until mario and metroid 3 come out.