title: Mapcall out in IOS5 with storyboard
body: <p>I am working on an iphone app in IOS5 that user storyboards.  I have created a storyboard that uses mapkit with annotation callouts. I was able to wire up push segues for buttons and table row selections using the Storyboard editor.  I have experience with custom callouts in MapKit, but can not figure out how to push a view controller that is defined in a storyboard from the callout.  I was going to use <code>[self.navigationController pushViewController:abc animated:YES]</code>, however, to do this I need to either get the view controller from the storyboard or initialize a new viewcontroller.  I don't have access to the NIB name since there is no NIB name.  How do I get access to an instance of a <code>ViewController</code> defined in a storyboard? Is there some way to use the  Storyboard editor to wire PUSH Seques to a custom map annotation callout?</p>
  
  <p>Thanks in advance.</p>