How to use jquery.when with ember data promises

I'm trying to fire a callback when multiple ember models have finished their save methods.

var promises = [];
modellist.forEach(function(mymodel){
    promises.push(mymodel.save())
}
$.when.apply(null, promises).done(function () {
    console.log('finished promises');
}
console.log('finished method');

The apply function is executed immediately.

Question: Which of the following is true?

• promise != ember-promise
• promise != deferred
• ember-promise != deferred