title: How to put MKMapView in compass mode?
body: <p>I have placed an MKMapView on my .xib.<br />
  It works fine, but I need the map to rotate according to the compass heading?</p>
  
  <p>I have read about "compass mode".<br />
  Perhaps I need to set the MKMapView property of compassMode to be true.
  But I can not find any check box for such an option in the properties of the MKMapView.</p>
  
  <p>So how do I enable compass mode for my mapview?<br />
  Is there no check box for turning this on.<br />
  Btw,. I even watched the 46 minute video at developer.apple.com</p>
  
  <p>"Visualizing information geographically with MapKit".<br />
  This video demonstrated an app that worked in such a compass mode.
  But I never saw any explanation of how to make it work like that.
  Any suggestions would be great.
  -jd</p>