How much of a boost will FFXIII give PS3 in Japan?

[TyePhoid_PAL]

Depends on the userbase. If its 4m I reckon 1.2m 150k hardware. Even this would mean a 1 in 4 attatch rate. Hard tio imagine sales of over 1.5 m unless the existing userbase grows substantially or a huge hardware lift upon its release.