A titbit now. It is easy to find currently selected language in the iPhone. we can use  NSLocale class to get that. This will give you the Language prefix..(for English – en)

NSString *preferredLang =[[NSLocalepreferredLanguages] objectAtIndex:0];

Another way to get the language is by  using the following lines:

NSUserDefaults* defs = [NSUserDefaults standardUserDefaults];

NSArray* languages = [defs objectForKey:@”AppleLanguages”];

NSString* preferredLang =[languages objectAtIndex:0];