title: How to detect the existence of Android Market on devices?
body: <p>Some Android devices don't have Android Market, like Korea, etc. </p>
  
  <p>Is it possible to detect the existence of Android Market at runtime? </p>
  
  <p>I know I can try to open a market uri first to see if there is any exception thrown. But I don't think this is a wise approach.</p>