There's also a technical consideration here. Originally FFXIII was on the so-called White Engine. SE bought into UE3 for cross-platform. Have they moved FFXIII over to UE3, or are they creating a White Engine for PS3?
All in all, MS do seem serious about pursuing other markets. Co-op featured in pretty much everything, and they had their share of 'different' games.
Tolerance for internet moronism is exhausted. Anyone talking about people's attitudes in the Console fora, rather than games and technology, will feel my wrath. Read the FAQ to remind yourself how to behave and avoid unsightly incidents.