如何在Windows上使用Xamarin Studio开发iOS应用程序？

I'm evaluating a Xamarin Studio indie license which does not include VS integration - Correct me if I am wrong. But I want to know if it's possible to use Xamarin Studio to do iOS development? I'm very interested in the new feature of iOS designer announced at Xamarin Evolve, ideally it shall be possible too on Windows. I'm evaluating a Xamarin Studio indie license w