Count me in for that.

BTW I was playing with an unregistered Airfoil Satellite running solo, and I couldn't get it to receive an AirPlay stream. I see it as an AirPlay device on my iPhone, but when I switch to it as an output the iPhone app stops playing. Satellite just sits there on my Mac in the "Waiting for Audio" state the whole time.

If I need a key for it, then I'll wait for the Chromecast support in Airfoil.