Likely an important talk, however I think it is googled-down too much compared to the original talk at the 28C3 [1]. ( Android as model of a free OS is just a tribute to the organizers methinks.) In the 28C3 talk Cory developed the argument against DRM ( and locked down computers) more carefully.
"Android as model of a free OS is just a tribute to the organizers methinks."
Yeah, I'm sure the fact that you can download the source code to it, make any changes you want, and redistribute that source code or that you can install any app you want on an Android handset whether it's in the blessed market or not has nothing to do with it being open. Nothing at all.
[1] https://www.youtube.com/watch?v=HUEvRyemKSg