title: Use MVVM Cross to bind an XML string formatted at run time to an Android TextView
body: <p>I am using MVVM Cross in Xamarin Studio:</p>
  
  <p>I have a text view, and I want to do something like this:</p>
  
  <pre><code>&lt;TextView
          android:id="@+id/title1"
          android:layout_toRightOf="@+id/thumb1"
          local:MvxBind="FormattedText Item.Description;"
           /&gt;
  </code></pre>
  
  <p>Where Item.Description is set at runtime, and is equal to something like: </p>
  
  <pre><code>"&lt;b&gt;The header&lt;/b&gt;\\n\\nThe sub text"
  </code></pre>
  
  <p>or another formatted string.</p>
  
  <p>I am aware I can do this if the text string is static by using a resource file, but my text is not static.</p>
  
  <p>Bonus points if you give me a solution that would work in Android and iOS XML!</p>