Not just the ML course. I signed up for one on human computer interaction, high tech entrepreneurship and lean startup and they have all been delayed indefinitely. It's a pity as I did Sebastian Thun's AI course and it was great and I was looking forward to these others... so the consumer isn't always winning as these companies fight it out, I think they should just put the material out for free it would create many new startups!
I guess this is why the 2012 ML class is delayed; I'm wondering if it will still happen :(