Google Earth, a program from Google that allows you to search for and zoom in on any location in the world, is available from Apple’s App Store and can be installed directly onto your iPod Touch. Google Earth requires an Internet connection to download information and images, which it caches on your device until you delete them or overwrite them. You can run Google Earth when you’re away from your Wi-Fi network but should pull up the data you need on-the-go beforehand so that it is cached and available sans-wireless Internet access.
Difficulty:Easy1Tap the “Google Earth” icon to open the app while you have access to a wireless network.
2Tap the “i” icon to open the options menu. Tap “Clear Cache.” This will purge your previous searches and free up space.
3Zoom into the areas you want to cache for use when you’re away from your wireless network. For example, if you’re going to hike on a specific trail and want to use your iPod Touch to keep your bearings, zoom in on that trail to cache its images.
4Start Google Earth like normal when you’re without Wi-Fi. You will be able to zoom into the areas and pull up the information you accessed last, which is cached on your iPod.
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