Emery: your assumptions are incorrect. Since it is a QT codec it should work with virtually any QT supporting application, whether they support REDCODE or not.
FCP just adds more support so that the codec is real-time enabled on the FCP timeline and we have some other options for FCP to plug into their transfer (transcode) option.
At the moment we're testing internally and with select partners. When the first few camera's will ship we will work with those customers closely to make sure everything is working properly. Of course that includes testing on multiple platforms and with multiple NLE's.