[meric]

It was both "defensive" and "offensive". Rather than standing still milking profits of the iPod until the entire market slowly dwindles as other mobile devices begin to incorporate music players as well, Steve Jobs moved onto the next thing with one foot firmly planted in the portable music player.

It was exactly how Steve Jobs operates, from the Apple II to the Macintosh (personal computer), from the Mac to the iPod (hardware + software), from the iPod to the iPhone (mobile device, battery). All transitions were done from positions of strength, stride to stride.