If your going to count PS2 and PSP software along with PS3 and PSN software than you should count all of Microsoft's sales. PC software, Windows XP, Vista, 7 , Moble 7 apps, XBLA, and Xbox 360 all together.
We are talking about software sales and Microsoft makes and sells a lot more software than just Xbox 360. If you're not going to count it all then you should just compare PS3 and Xbox 360 retail games and PSN/XBLA.








