Mobile matters, iOS, Apple’s mobile operating system matters. For most people numbers don’t lie, we see the huge numbers constantly quoted about android devices but lets not forget Android is open and modified, hacked and customized on all of the mobile devices it is deployed on.
Apple’s structure and process that everyone complains about is what makes the integration of the hardware and the software seamless. The App Store blows away what is called the Android Market that is why developer’s are going towards iOS still.
We now have iPhone, iTouch, Apple TV and iPads all running the same iOS.
This article linked below shows the kinda numbers and penetration that the mobile operating system has.