I am starting to think that this was just another rumor. I don\'t think Square ever had plans of releasing this multiconsole, even before Sony bought a huge part of them. The reason I think this is because FFXI is coming out in a few months in Japan. If this game was multi-console, then the NGC and Xbox versions would have been about 75% complete when Sony bought Square. It just doesn\'t make sense that they would throw out all that work.
And I doubt that the NGC and Xbox versions are being secretively developed. With the launch only a few months away, it would be stupid not to even announce that the NGC and Xbox were getting the game.
I think it would be better if Square did go multi-platform with this game though. It would make the game a lot more enjoyable with more people, and it would help Square make some profit on this online thing.