The Minish Cap is an exclusive Zelda title for the Gameboy Advanced.  I have to say, that it is one of my favorites.  It has really nice graphics and animation for a top-down Zelda game.  I'm not much for the "Wind Waker" style on console Zelda games, or even the DS Zeldas, but it works great for this title.

Recently Minish Cap was released on the Nintendo 3DS as an Ambassador game.