4 Coor Rebellion has an article up that's been ripped straight from NGC Magazine, and they have a long write up on the topic. Basically, they have the info, and give examples as to what will be different when playing with the Revolutions controller.
A Few Excerpts,
"“But they also promised it would be out on Gamecube!” we hear you cry. Well, they weren’t lying. Twilight Pricess will be released on Gamecube - there’s no changing that fact. However, when you insert your disc into your Revolution, you’ll be given the option to use the Revolution’s controller, with all the advantages that this will bring."
"The freehand controller will be used to allow you to attack with Link’s sword, and it’ll be absolutely perfect for this. Lock on, approach an enemy and then swing your arm like your life depends on it to dish out the damage. We know that there’s a sword tutorial at the start of the game, and we’d imagine that this will have to change significantly."
In short, Congratulations, it's what we all predicted.
Source : 4ColorRebellion