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iOS 5 Core Frameworks: Develop and Design: Working with graphics, location, iCloud, and more by Shawn Welch

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4. Core Location and Map Kit

One of the obvious benefits of iOS is that it’s a mobile platform. iOS devices move throughout the world; calling upon a device’s location while utilizing Core Location and Map Kit helps you provide a better context for the data in your app. For example, if a user is in San Francisco and does a search for “Bart,” they’re probably looking for information on the Bay Area Rapid Transit system (aka the BART), whereas in other parts of the world that same search may be looking for a pop culture reference. By pulling a user’s location, you make the data in your app more relevant to your users. New to iOS 5 are enhancements to location services including forward and reverse geocoding, placemarks, and regions.

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