Possible, but I'd say unlikely, even though I don't know the current reaction the Japanese people are having to LBP pre-launch, but given PS3 (and 360 for that matter) are basically on permanent life support in that country (thanks to the Wii, DS and Sony's own PSP).
I think it'll take a much bigger game for the PS3 to see a higher than Wii spike in Japan (say GT5 or FF, which ever comes first).







