gistfile1.m

- (void)startStandardUpdates
{
	if (nil == locationManager)
			locationManager = [[CLLocationManager alloc] init];
		locationManager.delegate = self;
		locationManager.desiredAccuracy = kCLLocationAccuracyKilometer;
		locationManager.distanceFilter = 10;    
		[locationManager startUpdatingLocation];
	}

- (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation
{
  NSDate* eventDate = newLocation.timestamp;
  NSTimeInterval howRecent = [eventDate timeIntervalSinceNow];
  if (abs(howRecent) < 15.0)
  {
	  NSString *urlString = [NSString stringWithFormat:SERVER_URL, newLocation.coordinate.longitude, newLocation.coordinate.latitude];
	  NSURL *url = [ NSURL URLWithString:urlString];
	  NSURLRequest *request = [ NSURLRequest requestWithURL: url ];
	  [NSURLConnection connectionWithRequest:request delegate:self];
  }
}