title: iPhone, addSubView doesn't call willViewAppear?
body: <p>I'm adding a view with <code>-addSubView</code>. I'm also using the view elsewhere and <code>presentModalViewController</code>. </p>
  
  <p><code>-viewWillAppear</code> is called with presentModalViewController but not with addSubView.</p>
  
  <p>No doubt this is something obvious ?</p>