Google has ported Google Earth to the iPhone or iPod touch, and it’s such an impressive app that it deserves an Apple ad of its own.
The interface for Google Earth will be familiar instantly to anyone who has used an iPhone for more than a couple of hours. Upon launching the app, you see a photo of the Earth from space. To zoom in, you can either double-tap or use the “reverse-pinch”
Things get more interesting when you tilt your iPhone; the display goes from a flat, satellite-eye view to a 3D-like image. If you’re near mountainous terrain, you get a true sense of the topographical features of the land. On many screens you’ll see Wikipedia icons, which link you to related Wikipedia articles.
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