座標反查地址

Google geocode api

https://developers.google.com/maps/documentation/geocoding/?hl=zh-tw



MKReverseGeocoder   for   4.3
http://furnacedigital.blogspot.tw/2011/02/mkreversegeocoder.html

CLGeocoder     for  5.x
http://blog.riaproject.com/objective-c/1851.html



應該會查察看下面這個
http://code.google.com/p/google-api-objectivec-client/