uh, according to IGN's story:
""Marionette is probably more suited for something like the Wii," said Miyamoto. "However, that type of game is difficult. Just looking at it, it seems to be fun, but then you get the feeling of, 'Well, what do I do now?'." Miyamoto feels that in order to make such a game last, you have to give it, among other things, a strong story."
--snip--
"Still, Miyamoto had some partially disappointing news. "We're not working on it any more. However, we'd like to release something like it with the right timing, so we're preserving it in the form of its story elements. When Marionette was being planned, we were trying to use the N64 controller in interesting ways. However, if we now use the Wii remote controller, it seems that those types of interesting elements would appear more naturally.""
Thread fail.