How big iOS really is as a game platform is demonstrated by figures from the blog TUAW. Look how many downloads there have been and how many people have become rich in the App Store, it seems iOS is even bigger than the Xbox or the Game Boy.
But to be honest, the graph bar isnt totally correct cause he also counted the lite versions of the game. Also mafia-style games often have multiple “apps” with achievement points available, these shouldnt be counted as well. Simultaneously this applies to the consoles that also have to deal with the same problems. Cause most on consoles are also multiplatform, such as Street Fighter 2 or Doom, there are several versions that are all roughly equal. The chart also missing the smaller console platforms, but nevertheless: the iPhone platform is huge in numbers.