This whole online education trend was started by Stanford 9 months ago. Then, the professors who started two of the first three online classes created 2 separate startups (coursera and udacity). MITx was 6 months late to the game.
It will be is not structured using Namespaces, which can be annoying if you are using them on a day to day basis and want to integrate something like Yaf that doesn't use them.