Thanks Prosugno,
Wii should overtake PS3 in August, but if Wii continues to drop then PS3 may hold on to the lead for another month.
I think PS3 will see a decent PES boost this October. PS3 should have 4 times the installed base it did when PES released last year, so there should be significant peer pressure for PS2 PES players to upgrade to the PS3 version.
Last year's PES launch week:
Italia
dal 22 al 28 ottobre
1. Pro Evolution Soccer 2008 PS2 [150.000]
2. Pro Evolution Soccer 2008 PS3 [55.000]
3. Pro Evolution Soccer 2008 Xbox360 [24.500]
I think PS2 & PS3 versions will both be close this year at ~ 100k each.