This map of Washington, D.C., which uses geolocated tweets, and the cell phone metadata attached to them, illustrates who in town is using iPhones (red dots) and who’s using Androids (green dots). iPhones are often more prominent in upper-income parts of cities (and central business districts), while Androids appear to be the dominant device in lower-income areas.

 

Here is New York City, which has a smattering of Blackberries in Manhattan (yes, it’s possible to tweet from a Blackberry). That green patch to the left is Newark

 

Here’s Chicago.

Houston.

Los Angeles

Atlanta

Jakarta, on the other hand, has a lot of Blackberries.

 

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