Square Enix has revealed that work on the Xbox 360 version of Final Fantasy XIII began two months ago.
"The Xbox 360 version is definitely following after the PS3 version, but [we] were finally able to come to a point in the PS3 development where some of the staff could take their hands off and start programming the 360 version."
Kitase and fellow producer/designer Motomu Toriyama gave an on-stage demonstration of FFXIII for Xbox 360 during Microsoft's E3 conference. The pair promised a Western release of spring 2010.
Head over to the Digital Foundry at Eurogamer blog for a technical explanation of how Final Fantasy XIII will work on Xbox 360.
Final Fantasy XIII launches this winter exclusively on PS3 in Japan.