title: iPhone Contact App's "Contact View/Edit View" XCODE
body: <p>I'm actually making an app in which there is a table view (listing all the courses)
  Clicking on one of it will show the details of that course. (detail view)
  Now what I want to make is, the Edit Mode of that detail view..
  and i want to give it a feel like iphone's native app :P </p>
  
  <p>when i look into contact's app, when i click "Edit" in a contact, it doesn't seems to change the WHOLE view controller, but just hide/show the old/new fields and buttons..</p>
  
  <p>if its not a new view controller (for the edit), then how is it working exactly?
  if its a new view controller, then i guess, its pretty simple, pushing the view controller into the navigation stack..</p>