In Pictures: 21 awesome GPS and location-aware apps for Android

Want basic driving directions? Help finding cheap gas? A cool way to create a digital scrapbook of your latest trip? Android has an app for that, and more

Layar

Look around you -- think you're seeing everything there is to see? Think again. Layar will show you an entire world that you never even knew existed.

This app adds layers of information to your real-world view, showing you tidbits such as details about the restaurants you're looking at, information on nearby apartments for rent, or tweets that people posted from nearby.

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