You may still be reeling with the news of Square Enix's Final Fantasy XIII losing it's PS3 exclusivity in favor of an Xbox 360 version (oh, my), but here are some additional details about the big announcement. One is that the Xbox 360 version of Final Fantasy XIII will not be available in Japan, and that the FFXIII spin-off, Final Fantasy Versus XIII, is confirmed to remain a PS3 exclusive.

The details were made known during the Square Enix press conference with Squeenix's corporate Shinji Hashimoto and game producer Yoshinori Kitase. The press conference, a follow-up to big press con at the Microsoft E3 conference with Yoichi Wada, also yielded a few more additional details, all concerning Final Fantasy XIII.

Here's what we have gleaned so far from the live blogging:

• Square Enix finally considered giving the Xbox 360 some FFXIII love after looking at the hardware for both the Xbox 360 and the PS3
• The number of discs for the Xbox 360 FFXIII is still undisclosed
• The Xbox 360 version of FFXIII will be simultaneously released in US and Europe, but not in Japan.
• Infinite Undiscovery is being developed as an Xbox 360, but Square Enix is considering a PS3 release
• No exclusive content for the PS3 or Xbox 360 versions of FFXIII; Square Enix will put out identical FFXIII for both systems
• No motion control for FFXIII
• FXIII is being developed with the Crystal Tools
• FXIII's fighting system is called ATB
• Both Hashimoto and Kitase's favorite Final Fantasy game is FFVII

Well, that's it for the big Final Fantasy XIII news... for now, at least. In the meantime, check out this neat Final Fantasy XIII trailer shown in the conference:

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