Android is the most popular mobile operating system on the planet. It powers more mobile devices than any others.
But most Android devices (more than 50%) in use today are running a two-year-old version of the operating system called Gingerbread. Although Google is now a full two versions ahead of Gingerbread, most manufacturers and cell phone carriers have failed to update devices beyond the older OS.
Below you'll find Google's own analysis of Android version installs, which was spotted by BGR. Click for a larger image:
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