I finally set up a wireless system, configured it exactly as instructed, and was having horrible disconnection problems. After 30 seconds, the app would lose connection with the Ion, dumping me off. I would click "Connect" again and it would stay connected for another 30 seconds. Repeat ad infinitum. I called ETC and they told me to disable 3G.
It works perfectly now. The lag is less, the app stays connected. Can any ETC people comment on when this will be fixed? I basically have to reconfigure my phone and stay away from any live sound system and all our Clear-Com if I want to use the iRFR on my iPhone.