I\'m testing out the MapKit framework on the iPhone and would really much like to switch the standard pin that displays a location to an image called \"location.png\".
Check out the MapCallouts sample code, there's a custom pin using an image in there.
http://developer.apple.com/iphone/library/samplecode/MapCallouts/Introduction/Intro.html
Note that if you're testing on OS 3.0 you'll need to comment out one line of code (it won't build until you do that).