title: Nullable<int> vs. int? - Is there any difference?
body: <p>Apparently <code>Nullable&lt;int&gt;</code> and <code>int?</code> are equivalent in value. Are there any reasons to choose one over the other?</p>
  
  <pre><code>Nullable&lt;int&gt; a = null;
  int? b = null;
  a == b; // this is true
  </code></pre>