How the iPhone Came to Dominate the Planet

When it comes to smart phones, the iPhone is still the hottest. The embodiment of the trendy gadget, Apple’s cellular cash cow continues to increase its market share quarter after quarter. Takes a look at the iPhone's evolution -- from its humble origins as a PDA to its current status as an app-fueled communications powerhouse, the iPhone is clearly here to stay. And that’s how we like it.