The Origins of Casual Games on the iPhone

When the iPhone initially comes out there were games like doodle job for these really simple casual games it doesn't feel like it fully explodes at that point but what ends up happening well there's no third party software really on launch right. Itreally wasn't until a while later I think 18 months later that the iPhone opens up to third party apps through the app store and even then they were single download paid download.