New Twiddle

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle'
});

application.template.hbs

{{my-awesome-form appName=appName subTitle="subtitle me"}}

my-awesome-form.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  inputValue: 'lol',
  upperCasedValue: Ember.computed('inputValue', function() {
    return this.get('inputValue').toUpperCase()
  })
});

my-awesome-form.template.hbs

<h1>{{appName}}</h1>
<h2>{{subTitle}}</h2>
{{input value=inputValue}}
<p>{{upperCasedValue}}</p>

twiddle.json

{
  "version": "0.4.17",
  "EmberENV": {
    "FEATURES": {}
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.2.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember-template-compiler.js"
  }
}