title: Does Android require a Google User account?
body: <p>I'm designing an API for an Android app.  An iPhone requires a user to get an Apple ID, do Android mobile devices in the same way 'require' users to get a Google ID?</p>
  
  <p>Ideally I want to be able to assume that users downloading our app on Android will have a Google account, so that we authentication via the Users and OAuth APIs is a snap.</p>