I believe FFXIII is being held back on purpose. Big words, however I believe S-E is trying to wait for the Japanese PS3 userbase to increase to acceptable levels before they release their game.
In the modern gaming market, for most games, the majority of your sales will come within the first week. After that you lose your hype and sales start to either show legs or die off.
The larger the first week userbase, the more games you will sell.
Perhaps many other games are being delayed until the PS3 gets a userbase that can handle their development costs.
I don't need your console war.
It feeds the rich while it buries the poor.
You're power hungry, spinnin' stories, and bein' graphics whores.
I don't need your console war.
NO NO, NO NO NO.