The original iPhone changed phones as we knew them, but iPhone 4S was a game-changer, too - The Verge

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Here's How Much (or Little) Apple's iPhone Has Changed Through the Years - Bloomberg

Here's How Much (or Little) Apple's iPhone Has Changed Through the Years - Bloomberg

Evolution of the iPhone New Media & Civic Engagement - 3020: 004/009

What do you think of the iPhone? - Quora

If Steve Jobs was alive, would Apple have still built bigger phones? - Quora

iPhone 4S: everything you need to know - The Verge

Apple seriously considered giving the iPhone a physical keyboard

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