title: Is the android market app already installed on every Android phone
body: <p>I am developing an Android app, which will use <strong>C2DM</strong>. In order to use C2DM a <strong>Gmail account must be logged in on the Android device</strong>. </p>
  
  <p>I searched and found that <strong>if Android market app is installed then the Gmail account is always logged in</strong> - therefore we don't need to create a separate Gmail account and log in to that account to use C2DM. </p>
  
  <p>So is the Android market app installed on all devices?</p>