Like I said though, that's only half the story. FFXI's problems are not just because the code started out on PS2, but because they want to make sure everyone has the same thing.
Inventory in FFXI is a "PS2 limitation". I doubt the PC (or even 360) versions would have issue adding more. They don't get it because SE is maintaining feature parity with the PS2.
The simple fact that the game will be on a less capable platform will likely mean it will be hindered by it.
GoW 3 was rumored to be 1080p,
it's 720p (in the comments).
ACII is also
a native 720p game.
Most PS3 (and 360) games are. The 360 has a hardware scaler to 1080p, PS3 software needs to include a software scaler. There's a short list of honest-to-goodness 1080p PS3 software, like Lair, Wipeout HD, Ridge Racer 7, and so on, but it's not "most newer games" by a long shot.