Final Fantasy 13 Xbox 360 Development not even started
As I am sure all you PS3 fanboys are jumping around for joy at that news it may actually be worse for both the 360 and PS3 boys that development hasn't started for the 360. If the game has a simultaneous console release in America or Europe than that means delays across the board for fans of the upcoming title. This shouldn't be a problem in Japan however because the title is only being released on the Playstation 3 in that region.
This does sort of bother me that they are waiting till the very end to port it, but at least that means that 100% is going into simply finishing the project. However if it's anything like say Bioshock, its going to take a while to port, hopefully they put a lot more effort into porting it as hastily as possible.