A nice solution for the RED camera in the ENG camera-persons world already exists and is arguably the best part of a Sony/Panasonic camera.
Of course I'm talking about the Sony Quick release plate. Also made and used by other camera mfgs. so probably not a patented design.
For those not familiar with the design here is a picture:
This plate mounts to the Fluid head wedge plate very solidly. It mounts to at least two 3/8 16 or 1/4 20 camera mounting bolts. There are a line of threaded holes underneath, allowing the SQRP to be mounted to the tripod wedge plate directly below the center of weight of the camera. The camera has a machined part which enters the SQRP receiver. Replacing the camera, just slides forward and click locks into place back on the tripod. The locking lever immediately frees the camera for shoulder use. When locked shut the red button must be depressed before you can pull the lever out to disengage the camera. It is therefore very difficult to accidently disengage.
I own several of these for my current HD camera. I pre-mount one on the tripod one on the Steadicam and one on the Crane or Dolly even in a production environment the speed increase over the typical Cine method is worth having in ENG type work it is essential.
It is a very familier piece to working press, and most Broadcast level video producers.
I'd encourage RED Team to develop a compatable mounting system as an option on the bottom of the red. ENG users will already have a lot of these plates