on the iPhone we have the Apple's amazing MapKit. There is something similar for Mac OS X?
If possible something more advanced than a simple WebView, because I need that it manage automatically at least:
- annotations
- the user interaction
- the zoom in/out
- an overlay view
(Even if the maps are not from Google is ok.)
Thank you very much!
Answer
Update 2
MapKit is available in OS X 10.9 Mavericks : Map Kit Framework Reference.
Update - pulled from my comment below
The situation has changed and there now exists a third party MapKit for Mac OS X. Find it at http://github.com/Oomph/MacMapKit and a small writeup at http://rickfillion.tumblr.com/post/1134987954/pretroducing-mapkit-for-mac
Orginal Answer
There is no such API from Apple on Mac OS X. You should file a bug request at bugreporter.apple.com.
The best alternative is to use the Google Maps JavaScript API embedded in a WebKit view. Visit the Google Maps JavaScript API V3 Documentation to understand the API.
I realize that you asked for more then a simple WebView, but perhaps you're unaware of some of the more advance functionality a WebKit view allows.
Webkit provides means for bridging between the JavaScript scripting environment in your WebKit view and the rest of your Cocoa application.
To call a Javascript function from Objective-C, use your WebKit view's WebScriptObject. "Using Javascript From Objective-C" from the "WebKit Objective-C Programming Guide" is a great place to start learning.
If you need to call back into your Cocoa application from Javascript, "Calling Objective-C Methods From JavaScript" in the "WebKit DOM Programming Topics" provides examples and explanation.
These technologies used carefully together should provide the functionality you require.