I haven't really been able to find a ton of info on the communicator, I am curious about it though. It would be nice to have a way to hook up the Xbox to a modern gaming headset, through a combination of Toslink and an AUX jack maybe, ideally without having it plugged into the controller you're using.
I'm assuming this is an analog/digital converter and that a simple AUX to USB adapter couldn't replace this thing.