Ember.Select default option - select

Question

How do I set the default option for a select box when the page loads? I've tried setting the default value for the selectedPersonController in the example below but to no avail. Am I doing something wrong?
var App = Ember.Application.create();
App.Person = Ember.Object.extend({
id: null,
firstName: null,
lastName: null,
fullName: function() {
return this.get('firstName') + " " + this.get('lastName');
}.property('firstName', 'lastName').cacheable()
});
App.selectedPersonController = Ember.Object.create({
person: null
});
App.peopleController = Ember.ArrayController.create({
content: [
App.Person.create({id: 1, firstName: 'Yehuda', lastName: 'Katz'}),
App.Person.create({id: 2, firstName: 'Tom', lastName: 'Dale'}),
App.Person.create({id: 3, firstName: 'Peter', lastName: 'Wagenet'}),
App.Person.create({id: 4, firstName: 'Erik', lastName: 'Bryn'})
]
});
Template:
{{view Ember.Select
contentBinding="App.peopleController"
selectionBinding="App.selectedPersonController.person"
optionLabelPath="content.fullName"
optionValuePath="content.id"}}

Answer 1

You don't set a specific person on your App.selectedPersonController. See a working example here: http://jsfiddle.net/ZpTYV/
// set a default selected person
App.selectedPersonController.set('person', App.peopleController.objectAt(1));
I don't know if this is a typo in your example, but you also have to declare App globally, so it can be accessed in the Handlebars template.