在横向的iPhone上用大尺寸文本填充UIView

I have put my iPhone app in landscape mode and I want to put a message in one of my views that fills the screen. As of now a 6, 10 or 12 character message only goes up to about 12 point font in portrait view in interface builder. When I build and the iPhone simulator switches to landscape the font size stays the same as in portrait and doesn't fill the view.I have put my iPhone app in landscape mode and