That's a cool monopod.
I've not seen a monopod with the sort of quick-release mechanism you describe. I doubt you'll find such a connection since the whole point of a monopod is to provide easy portability and instant stability at a second's notice. It's the brace of choice for sports photographers, for instance. They just attach the camera and keep it there throughout the day.
To answer your first question, yes, the screw-mount for tripods and monopods is an industry standard. Even little digital point-and-shoots have the same size mount.