If FFXIII comes out on 360.........Wow.
If SE did that, it would (almost) singlehandedly give the 360 a fighting chance against the PS3 in Japan, and boost the 360 to be a great system to multi-plat RPGs to.
As a HUGE RPG fan, I am already happy with upcoming 360 RPG titles (Mass Effect, Blue Dragon, Lost Odyssey, Eternal Sonata, ect), but having FFXIII on 360 would be great.
Japaneese would come en-mass to the 360 if that happened. That's not saying the 360 would beat the PS3, but it'd allow the 360 to have a fighting chance to wiggle into 2nd place worldwide, as it'd actually sell a bit of units in Japan.
On S-Es end, multi-porting FFXIII to 360 would allow for lots of sales of the game - it could possibly beat FFVII for most w/w sales for a FF game (obviously due to both PS3 and 360 sales).
IMO, I'd have FF as a 360/PS3 game, and port KH to the Wii and PS3. That way both Nintendo and MS get VERY strong S-E franchises, and Sony remains good since they get both.
IMO, I saw something like this coming with S-E licensing UE3 engine out - it should allow for very strong multi-platform deving in the future.
*IF* FFXIII goes multi-plat.........
Japan:
1.5m sales for PS3
750k sales for 360 (huge boost to h/w sales, and with Eternal Sonata and LO, should have a decent bit of h/w at the time FFXIII launches)
US:
900k sales for PS3
1.55m sales for 360
Other/Europe:
1m sales each for 360/PS3
Total:
6,700k units sold...2nd best FF game (as far as I know)