Bind to computed array proxy computed properties

HTML

<script src="http://cloud.github.com/downloads/emberjs/ember.js/ember-0.9.3.js"></script>
<script type="text/x-handlebars">
    {{#view App.testView}}
        <div {{bindAttr style="divStyle"}}>Testaaa</div>
    {{/view}}
</script>

JavaScript

App = Ember.Application.create({

});

App.testView = Ember.View.extend({
    divStyle: "width: 200px"
});