How to create custom annotation and callout bubble in iphone?

I want to create a customized annotation and callout bubble on MKMapView. I need to use a customized view rather than default annotation pin and annotaion view(which is limited to show only开发者_如何学JAVA title and a single line description). When user tap on an annotation, I would like to display more information on the callout bubble.

I passed by this control but I haven't used it:

http://cocoacontrols.com/platforms/ios/controls/custom-callout

I've found some pretty good controls at that site.