[techweenie]

iPhone 4S is free with contract.

Apple is headed toward 700 million iOS devices sold. When iOS 7 comes out on the 20th, it will likely become the #1 mobile OS (Android market is splintered).

All iOS devices are in the "Apple ecosystem," and able to access purchased (and free) items via iTunes.

25 billion songs sold as of 2/13

40 billion applications downloaded as of 1/13

# movies & TV episodes rented -- unknown, but likely in the 10s of millions each.

As big as Apple's content commerce momentum is, individual products and product evolvement have less and less impact. That's not to say it's becoming stale, just changing. Trust me, any of its competitors would love to have Apple's challenges right now.