title: Reusing PhoneApplicationPage instances
body: <p>I'm developing a windows phone app, one of my pages use a panorama that loads a bunch of UIElements, taking a good share of memory.
  Since every time I navigate to that view the page is created all over again, is there any way to reuse the page instance? Or there is any other way to ensure that the UIElements aren't created more than once?</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>The navigation process is the follows:</p>
  
  <pre><code>HomePage -&gt; Secundary Page
  Back
  HomePage -&gt; Secundary Page
  Back
  HomePage -&gt; Secundary Page
  etc.
  </code></pre>
  
  <p>What I want is that the secundary page instance to be reused after the first navigation.</p>
  
  <p>Thanks</p>