http://www.nytimes.com/2011/05/09/technology/09google.html
A stack of internal e-mail messages from Google, which a Massachusetts state court made public last week, provide a glimpse into the competitive tactics and decision-making inside a business that is crucial to the company’s growth — its Android software for smartphones.
Android is Google’s gateway technology to a lucrative new arena for mobile advertising. Google provides the Android operating system free to handset makers, and allows them to tailor the open-source software somewhat, yet limits their freedom to tinker.
Android phones must adhere to a “compatibility” standard determined by Google. In an e-mail on Aug. 6, 2010, Dan Morrill, a manager in the Android group, noted in passing that it was obvious to the phone makers that “we are using compatibility as a club to make them do things we want.”