has anyone said what they might cost?
"soon"
I used to own a CAE RS10 and it had a similar jack on it as well as midi. I had a guy named Lyle Caldwell solder me up a break out box that sent midi and phantom power up a mic cable to power the Bradshaw foot switcher. I'm pretty sure any of those guys could build one of these, Dave at LA Sound, Friedman or Lyle C. I plan on holding out till the OEM ones arrive and hear about their quality and price. If they are so so I'm calling LA Sound.