title: Audio out (What I Hear) to an UPnP device
body: <p>I don't understand why this hasn't been addressed before, can't seem to find much info on this on the interwebs.</p>
  
  <p>I am sometimes listening to something on my computer and I want to play it to my XBOX 360 or Sonos (Multi-Room Music Manager) and I can't do that in a simple one-click way.  I would want to simply be able to select the UPnP devices around me as my audio output and be able to play anything that my computer would play otherwise.</p>
  
  <p>Do you guys know of any software that enables this?  Have you heard of this idea before?</p>