Developers Survey - 73% working on 360, 58% working on PS3, 42% on Wii

[Kyros]

This only means that there are still more games developed with the 360 as a lead platform (surprise).

More developers are needed on the lead platform than for porting the game.

BTW western developers are the only devs that count as long as you do not have a morbid love for JRPGS