title: How can I use MKPinAnnotationView on top of a regular UIView (instead of on a map)
body: <p>I'm writing an iPhone application that will contain a custom map -- my own image for the map, not Google's. The image isn't very large, so instead of using a library such as RouteMe, I'm opting for just a UIScrollView with an embedded image (the map).</p>
  
  <p>My question is: it is possible to re-use Apple's MKPinAnnotationView classes on top of my custom UIView so that the pin interactions will feel the same as MapKit? I have so far figured out how to add a pin to my map and position it, but I can't figure out how to let the user interact with it -- i.e. make the description bubble pop up.</p>
  
  <p>Any thoughts? Thanks very much.</p>