title: Presenting an UIViewController's view from another UIViewController
body: <p>I have a tricky question. As everyone knows, Apple clearly says that ONE UIViewController should be onscreen at a given time.</p>
  
  <p>But how about if you wanna implement a signup worflow, with tiny views, of say... 200px height?.</p>
  
  <p>Is it there any <strong>real problem</strong> you could face.. if you attach an UINavigationController (320x200px) as a subview, and push several UIViewControllers?.</p>
  
  <p>If i go the UIView approach, i'll need to replicate the UINavigationController's behavior. It's not big deal, but it takes extra time.</p>
  
  <p>Furthermore, UIView's shouldn't have business logic code. So, the rootViewController would be handling the whole signup flow. Which is OK, but i'd really rather split it up into several classes.</p>
  
  <p>Any suggestions will be very welcome.
  Thanks in advance!</p>