If you check out NIntendo's official site (not the Japanese one RMC posted yesterday), and then scroll all the way to the bottom, you can see they're now promoting those nifty Zelda anniversary shirts too. Guess that can only mean they'll be available to North America fans. The King of Games site is having indigestion at the moment, but I did manage to catch a wait time of "May 2012 delivery" in between its offline fits.

Thanks for the tip, Dusk!

Source: Nintendo