title: shorthand version of ExpandoObject or a Dictionary?
body: <p>I really like the anonymous type syntax.  e.g.</p>
  
  <pre><code> new {a = 1, b = 2, c = 25.2}
  </code></pre>
  
  <p>It'd be neat if there was a version like this for Expando or Dictionary.  Is there a way?</p>