Nintendo Australia has let slip that the release date
for Super Mario Galaxy 2 will be July 1st.
Run, jump, and fly through a dazzling galaxy of all new stages, bursting with imagination when Super Mario Galaxy(TM) 2 for Wii(TM) hits stores from 1 July 2010.
For players new to the Super Mario Galaxy franchise, Super Mario Galaxy 2 comes packaged with a DVD which provides helpful hints and tips. Included are tips for skilled players as well.
No word or reasoning as to why it's almost 6 weeks delayed from the US release, but maybe it's "punishment" for New Super Mario Brothers Wii being leaked online early by a local? promoted forum item