Google has announced a few nice updates to Google Maps that will be rolling out soon. For starters, expect offline maps to come to mobile Android and iOS devices. You'll be able to look up a map area in advance and select it to be made available offline. Maps will then indicate how much space it will take up on your device, and will download the content with your approval.
The second major feature is greatly-improved 3D maps. Thanks to planes shooting images at a 45 degree angle and from directly above, Google used stereophotogrammetry to combine the images to create 3D scenes. Google was able to demo this on an internal version of Google Earth for iPad, showing off the city of San Francisco in 3D.
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