New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  user: Ember.Object.create({
    name: "Bob Bobbington",
    things: [
      Ember.Object.create({ name: "A thing" })  
    ]
  })
});

templates.application.hbs

{{#with user.things as |things|}}
	<p>User: {{user.name}}</p>
  <div>
    Things:
    {{#each things as |thing|}}
      <div>{{thing.name}} - {{user.name}}</div>
    {{/each}}
  </div>
{{/with}}

{{#with user.things}}
	<p>User: {{user.name}}</p>
{{/with}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}