In a recent interview with Gamespot Final Fantasy creator Hironobu Sakaguchi gave his opinion on the series platform-exclusivity:
GS: What do you think about what Square Enix has been doing with the Final Fantasy series since you've left? Because we're seeing more games go multiplatform these days, if it ever came to pass that the Final Fantasy series came to the Xbox 360, how would you feel about competing against it with your own games?HS: I feel that the Final Fantasy series should come to Xbox 360 as well. This is wise. It makes so much sense to me…it has so much potential in North America and in Europe. So there's a great chance for the series to succeed on 360 as well.
[in English] And I heard they made the White Engine open platform as well. [final fantasy xiii is being developed on the White Engine; if the engine is indeed cross-platform, an Xbox 360 port would be a simple matter. -ed.]GS: So you wouldn't have any problems competing against a series that you helped create so many years ago?
HS: I'm willing to break them into pieces, crush them at my feet. [laughs]
Of course, since Sakaguchi has left Square Enix it's no longer his decision whether or not the series remains a PlayStation exclusive. We will be seeing his work on the 360 soon, though — his new RPGs Blue Dragon and Lost Odyssey are both set to release this year.