Need to migrate your preferences from an existing bundle ID? Use this in your App Delegate.

UpdatePrefsLocation.m

+ (void)initialize {
  // Update the preferences location from the old location (which is now used for the App Store)
  NSDictionary *retailUserDefaults = [[NSUserDefaults standardUserDefaults] persistentDomainForName:[NSApp applicationIdentifier]];

  if (retailUserDefaults == nil) {
    NSDictionary *macAppStoreUserDefaults = [[NSUserDefaults standardUserDefaults] persistentDomainForName:@"com.thecocoabots.hyperspaces"];
		
    for (NSString *key in [macAppStoreUserDefaults allKeys]) {
      [[NSUserDefaults standardUserDefaults] setObject:[macAppStoreUserDefaults objectForKey:key] forKey:key];
    }
		
    [[NSUserDefaults standardUserDefaults] synchronize];
  }
}

Whoops. Over-release!