I already knew about pressing R to change to ZSS but there being another way to do that during a match is a great move by Sakurai. Linking also sounds like a good addition, looks like it could make combo's a lot smoother.
Some Wiis in Japan have some skipping issues with this game which is apparently caused by a dirty lens. Because this game is the first Dual Layer Wii game it's a lot more noticable.
I'm very happy with these choices of music, I listened to a lot of them already and they sound great. Now to identify those last question marks, couldn't recognize a lot of them.
Ganondorf still has some of the same A-Moves, like his forward aerial. But his Up-Tilt has been changed so that it sucks people in. We haven't seen any B-moves except for his Up-B which is definitely different.
Just read on NeoGaf that it is possible to start a match as ZSS by pressing R.
http://www.eurogamer.net/article.php?article_id=91724
Probably later then