It was given by Richard Gabriel and is titled Architectures of Extrordinarily Large, Self-Sustaining Systems. I really enjoyed the talk he gives and I think it has a ton of insight into software design and the building of Ultra Large Scale Systems - which he defines as "one that is impossible to build because it exceeds critical limit of today's software engineering technology.
I do think this further validates the change in data center architectures in that ultra large scale software will run in ultra large scale computing environments. Welcome to the Matrix
Check out the presentation here.