Extending Maps

So how can we extend the Map API to include stuff like the Info Card using the code here added to the backend of Corona so we can call these iOS 6 apis?

http://www.techotopia.com/index.php/Integrating_Maps_into_iPhone_iOS_6_Applications_using_MKMapItem [import]uid: 18783 topic_id: 31465 reply_id: 331465[/import]