So I'm doing this in my code now:

UIViewController* ctrl =
     [[UIViewController alloc] // i'm alloc'ing a UIViewController...

       initWithNibName:@"TheNibName" // But this NIB has, within
       // interface builder, a link to "UIViewControllerDERIVATIVE".  So really,
       // `ctrl` is a UIViewControllerDERIVATIVE instance, not just
       // a UIViewController instance.

       bundle:nil] ;

The reason I'm doing this is it makes a massive convenience in writing some code that pushes modal dialogs on.. since Objective-C doesn't support <template>.

My question is, is this ok?? Or will it bite me in the ass later?