Gps notification iphone sdk

Is there any api in iPhone sdk for getting the major change in location (ie for more than 500m). I ne开发者_运维问答ed to notify the user even though the application run's in background.

I'm not 100% on the running in the background part, but iOS 4.0 introduced some major change in location monitoring to CLLocationManager, specifically 'startMonitoringSignificantLocationChanges'. Is that what you're after?

Your question is answered in detail in this document: Location Awareness Programming Guide