Bart has it right. CopterControl is basically just a cut-down version of the full-fat product - all the stabilisation stuff but without the navigation features. The Ground Control Station software is the same (just certain features like GPS waypoints don't work for CC). The OpenPilot software, both the GCS ground station and the flight software/firmware, is FREE, as in "no money", "zilch", "zippo"
(and always will be). Both are built using very clever modular/plugin architectures, so both are massively expandable. The flight firmware can be updated at any time through a USB connection - very simple.
Due to this modularity, there is no practical limit (except perhaps onboard memory) to what the platform can do - if you can dream it (and someone can code it) then OpenPilot can do it.
The full-fat version (probably going to be called the OpenPilot Pro/INS system) will be three boards (main processor, INS, GPS), plus there'll be a very powerful telemetry modem (called PipXtreme), current sensor and even an OpenPilot ESC (with telemetry feedback). It's hard to grasp just how amazing this project is: a bunch of gobsmackingly clever people producing a free platform that rivals/betters the most expensive systems around!
Oh... and if you want to manufacture the hardware yourself, you can do that too - just download the layouts and parts list from the repository