[rodh]

What a coincidence. I did the exact same thing yesterday, following the instructions here: http://trouch.com/2012/08/03/airpi-airplay-audio-with-raspbe.... You really need a USB soundcard for this to be usable though, unfortunately.

[josteink]

What about HDMI audio output? For those of us who already have a decent, digital A/V receiver?

[a_bonobo]

I have XBMC with graphics + sound running over HDMI to my TV, no issues with sound at all.