title: iPhone MKMapView: Detecting Nearest Locations in Array from Current Location
body: <p>I have an Array with approximately 1,000 Objects, each of which has a precise coordinate value.  What I would like to do is take a Search button that I have and, when pressed, detect the current location and calculate 10 nearest Objects to this location.  Any advice for the best way to go about this?  Thanks.</p>