edX: a step forward- or backward?

edX, the new distance learning collaboration recently announced by MIT and Harvard, has gotten a lot of attention, and rightly so:

Harvard University and the Massachusetts Institute of Technology (MIT) today announced edX, a transformational new partnership in online education. Through edX, the two institutions will collaborate to enhance campus-based teaching and learning and build a global community of online learners.

Coming on the heals of the appearance of Coursera, Udacity, and the edX precursor, MITx, this has led numerous commentators to suggest that we have entered a veritable age of aquarius for massively open online courses (MOOCs). All of these efforts involve, to one degree or another, universities of the very top rank and each will offer online versions of university level courses using the most advanced technologies. Further, all will be open to anyone who wants to sign up, and the courses will either be free or involve a very nominal cost for e.g. testing. Importantly, however, none of these efforts will lead to course credit, degree or certificate from the universities involved. Instead, successful students can hope for a signed letter of completion from their well-known instructor or a certificate from the organization

Preliminary results are very exciting, indeed. Sebastian Thrun, founder of Udacity, did an online course at Stanford that drew over 160,000 student, and Udacity has over 200,000 students signed up for its first six courses. MITx's first course enrolled about 120,000 students.