Quote Originally Posted by IGN.com
Final Fantasy Meets Gears of War
Square Enix to use Unreal Engine 3 for future titles.

January 25, 2007 - In the videogame equivalent of Angelina Jolie hooking up with Brad Pitt, Final Fantasy developer Square Enix will use Epic's Unreal Engine 3 for future next-gen and PC titles. Final Fantasy XIII, exclusive to PS3, is to be the last game to utilize Square's White Engine exclusively.

In an effort to ensure top-quality in its next-gen games, Square Enix is building a "combined technology platform." In a press release issued this morning, Square noted the new platform would be used "throughout the company, utilizing proprietary technologies as well as third-party solutions such as Unreal Engine 3."
http://pc.ign.com/articles/758/758364p1.html