My Rasberry Pi with HiFiBerry DAC+ is working too I’ve tried to make it work for a few days, first with OpenELEC, then Raspbmc, Raspbian with no success. I’ve seen led DAC+ light on few times, but no sound yet, till today
OpenELEC - thanks to develepers and chat on IRC i’ve loaded modules, but it hangs when you select DAC+ (ALSA) on the list in XBMC.
Raspbian - there was a problem with XBMC in full hd so i’ve let it go, the led was also on, but no way to test it (no ability to configure it)
If you have any other successes or just want to share (I can write exactly what i have tried) I would be glad to write to you. My goal is to make XBMC work, best on OpenELEC 'cause it’s easiest to run and configure. I’ve also some issues with wifi dongle, which i have ‘steal’ from my Xtreamer, it works on OpenELEC, Raspbian, on Volumio not yet