Ideally, I would have MIDI coming from the DAW to the iPad, and toslink/SPDIF from the iPad to the DAW. For SPDIF, These look good, http://www.ha-info.com/ngcoax.htm, but that's as far as I've gotten. Google'ing just seems to return useless crap, so I'm curious to know what has been working for other musicians...
Thanks in advance!
