title: (iphone) what happens to subviews when superview is dealloced?
body: <p>Suppose a view(A) has subviews.
  The view(A) is getting dealloced because its retain count goes zero.  </p>
  
  <p>What happens to the subviews of view(A)?<br>
  Do they get detached(removed from view A) and their retain count decrease accordingly? </p>
  
  <p>Thank you</p>