In the news yesterday Google Latitude can be used with a wide range of like  iphone 3GS, BlackBerry, Windows Mobile,Symbian or android  smartphone .At last news from google blog that google Latitude is concerned with using iphone or ipod OS 3.0.The iphone 3GS can using with web application running in Safari with downloads in the App Store.With Google latitude have function to see the location of friends on the map, and privacy settings, so you control how your location is shared with your friends in the iphone.Google latitude can find directions and simple search functionality ,the help around the world in the iphone.