Is this still the reason why we didn't heard something about a new Zelda? You need to find clues in game and complete puzzles. I think it's just a WiiWare game that will come out later. It's a puzzle game for hardcore and non-hardcore gamers... Some images below:
Source: Wii-DS.nl
The menu:
In game:
The puzzle menu:

In game:

The puzzle menu:

Source: Wii-DS.nl
