Wayne--here is what I received from Steve Phillips in my office, who has been working with a team to finish the Critical Reasoning course:
All of the course materials will be available in Word .doc format, so they can be easily remixed, reused, and uploaded to any LMS. At the bottom of every page will be a download button (identical to the way we set up our open PLA100/200 courses). The Google Site shell only exists to provide students (and our staff) with a more attractive and polished way of looking at the course.
In terms of micro-courses, while our course was not designed this way (and as far as I can tell, neither was the UNISA course), there is enough of a thematic link between modules 1&2, and 3&4 to make two micro courses, and module 5 could be expanded to essentially a mini English composition course.