The biggest telltale signs of Apple's success is it's integration in other products.
You see it everywhere.
Most obvious - Your BMW. IPod hookup.
Gym? Treadmill? IPod hookup.
Audio Receivers - IPod ready.
Little kids? IPods/IPod touch.
Guess what? The IPhone offers this.
Sure, you can use a USB memory stick and different music on your Android or whatever, but your average consumer doesn't want to put music in multiple devices. It's already time consuming or hard enough (for your average consumer) to do so. Most older consumers ask their kids to do it for them.
