Actually, this generation has less exclusives. More games are multiplatform. Also, MS will pay for exclusives, while Sony and Nintendo refuse to. There's no reason for them to not be multiplatform if they won't get paid. There's one other thing too. The Xbox 360 is basically a streamlined gaming PC. It's almost not a port between the two. PS3 on the other hand is MUCH harder to develop for (multiplatform, let alone porting later). Wii, well, isn't as powerful anyway so "ports" are completely different games.