Metro Skype and Fullscreen Desktop applications

Is this intended? This is a huge killing blow for metro apps for me.

I was playing DOTA2 today and connected to Metro Skype (Because it's so pretty) so I could audio call with my teammates. After doing so I jumped back to the game and I had no sound at all. If I alt tabbed it resumed, but when I went to any fullscreen app, Windows cuts the sound of Metro apps.

This for me is a huge killing blow for Metro apps, being unable to use them in the background

I tested with the Music app and same thing happened, even worse,it lowered the volume whenever I went to another app.

This is horrible! And I'm a huge fan of the Metro environment