Hi,
Just came across your post while doing some research. As it happens I'm doing some experimenting with something very similar. I'm building an audio distribution / mixing system for at home, but like yourself I'm piping it round using IP as the underlying tech.
Currently, playing with beaglebone blacks and some USB sound cards as a test rig. If it works I'll end up using higher quality ADC / DACs.
Couple of the big things include synchronisation, latency. Choosing between TCP or UDP for example. Both WiFi and wired. My initial test rig will be wired purely to sort out the timings.
If you are interested, I can share my findings and code as I go?
/gav
