TWRoO on 31 March 2009
Do you mean when will the combined Wii/PS3/360 surpass the combined PS2/GC/XB?
Well combined PS2 gen is currently just over 170 million, and will likely end around 180 million (not including DreamCast)
So it will be sometime in 2010 for sure, as the end of 2009 should see around 145-150 million for the current gen.
So I will guess around October 2010
