title: How to go from DOM node to viewModel object?
body: <p>When the <code>drop</code> function is called back, <code>this</code> is set to the droppable DOM node (the target) and ui.draggable is the DOM node which was dragged. </p>
  
  <p>Is there an idiomatic way of getting the model object which has been rendered as a particular DOM node? </p>
  
  <p>(I'm using jQuery templates, if it matters.  There may be more than one rendering of a single modelView object.)</p>