In Pictures: 15 iPhone apps that changed our world

The first iPhone hit the market less than five years ago -- and shook up our world. Now iPhone sightings are everywhere, with Apple lovers listening to music, playing games and staring into tiny screens. The last holdouts are coming around and finally getting a smartphone. Most people feel lost without their iPhones. Can you live without these iPhone apps?

News Apps

Whether you receive news alerts via the CNN app, AP app, New York Times app, or any other news-related app doesn't really matter. The point is you receive these alerts on your iPhone as the news breaks and can chat with friends, colleagues, even strangers about news events. You don't have to wait for the 5 o'clock news or tomorrow's paper. You don't even have to fire up your PC at home or work. You are one of the first to know what's happening in the world.

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