http://www.slideshare.net/uupaa/flowjs のjQuery.Deferredの使い方はそもそもおかしい。

waitForAsyncProcesses.js

waitForAsyncProcesses().done(finishedCallback);

function waitForAsyncProcesses() {
  var asyncFunc, A, B, C, D;
  
  asyncFunc = function(ms) {
    var dfd = $.Deferred();
    setTimeout(dfd.resolve, ms);
    return dfd.promise();
  };
  
  A = asyncFunc.bind(null, 10);
  B = asyncFunc.bind(null, 100);
  C = asyncFunc.bind(null, 20);
  D = asyncFunc.bind(null, 200);
  
  return $.when(
    $.when(A(), B()),
    $.when(C(), D())
  );
}