The press release is odd but the game looks awesome.

Nintendo of America Requests the Pleasure of Your Company at the Marriage of

Peach
to
Bowser

on the 9th Day of April 2007

The nuptials will take place at the beginning of Super Paper Mario, which will be available for Nintendo's hot new Wii home video game system. Those who wish to attend - or thwart - the ceremony will need to switch between 2-D and 3-D.

What does this tell us?

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a) Nintendo like putting out unusual press releases.
b) Super Paper Mario will hit the Wii in America on 9th April 2007. No European announcement has been made as of yet.