Android Open Kang Project

In a Nutshell, Android Open Kang Project...

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  has had 422,228 commits made by 3,547 contributors
  representing 4,218,285 lines of code
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  is mostly written in Java
  with an average number of source code comments
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  has a well established, mature codebase
  maintained by nobody
  with stable Y-O-Y commits
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  took an estimated 1,243 years of effort (COCOMO model)
  starting with its first commit in October, 2008
  ending with its most recent commit over 5 years ago