Audio Output

This should be fairly simple (I would think?)
Audio Output capability, from the desktop, controlling the phones output. That way your phone could be on the good stereo and you could be lounging with your lappy happily changing music at will.

I second that. That's what I was hoping the app would do.

I "third" that.
Step 1: Play your phone's music on your phone.
Step 2: Play your computer's music through your phone.