AOSP

 AOSP  is Android Open Source Project, the bit of Android that isn't reliant on Google services.

Articles

 * 2014-08-07 http://www.asymco.com/2014/08/07/open-always-wins-2/
 * 2011-01-04 http://epeus.blogspot.com/2011/01/two-faces-of-android.html