ViewControllers and beforeInit

After reading about ViewControllers in the Sencha Blog post about them, I tried using the beforeInit function to initialise some variables, but found that the function was never called. Has anyone else tried this? Is this functionality broken, or have I done something wrong?

Here's the code I'm using (fairly straight-forward):

Code:

Ext.define('MyApp.view.MainController', {
    extend: 'Ext.app.ViewController',
    alias: 'controller.main',
    
    beforeInit: function () {
        console.log('beforeInit - loading css files');
    },
    init: function () {
        console.log('init - doing stuff here now');
    }
});

In the application's launch function, I create the main view which uses the above controller. I see the console entry for the init function, but nothing for beforeInit. Thoughts?