c0rd on 23 June 2010
The Wii is at about 545 million software shipped as of March 2010. (don't think this includes Wii Sports)
Over here, we have PS2's March 2004 software shipments at 572 million units. That's 27mil away from where the Wii is at now, except the PS2 released 8 months earlier in Japan, and a few weeks earlier in EU / America.
They seem more or less equal, with the Wii probably much farther ahead in the US, but behind in the other regions.
