I believe I saw it somewhere. It's a much more powerful motor that what we've had, similar in style to a Victor SP or Talon SRX. The only place I could find info on it was here:
http://www.ampflow.com/vex_motor_speed_controller.htm. I'm fairly certain this is the motor controller they're talking about, but I could be wrong. It's not even on the VEX website.