Final Fantasy XIII won't be released for X360 in Japan. That's why I think Sony didn't react...
FFXIII will have a huge impact in Japan and it will be the reason for every Japanese to buy a PS3. Since the release of Crisis Core, PSP is the number one selling console over there...
On the other hand most of Final Fantasy western fans either have a PS3 or will buy one just for FFXIII because most of them loved the series through their Playstations
And also from Kotaku's live blog
"Question: How will the Xbox 360 and the PS3 versions be different?
Says Kitase: We planned on having the contents the same, but obviously the Blu-ray and the DVD will be different."
Lets see what the contents will be for each version...
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