It looks like the Xbox Companion App for Windows Phone was updated over the weekend to version 1.2 by Microsoft. 

Unfortunately, there is no changelog or any updates noted in the Xbox Companion App page at the Windows Phone Marketplace so not quite sure what they have tweaked in it.

The Xbox Companion app allows you to interact with your Xbox 360 console using your Windows Phone by letting you search for movies, shows, music and then play them on your console.

The app is very popular and has received 1,545 ratings since it was released last November and carries an average rating of 4.5 Stars.