Spinny Foamy talk
The audio and the slides of Engle's talk are available at the above link. If you are interested in getting an idea of the current state of research in the LQG/spin foam community, I encourage you to listen to the full audio. About the last half of it is an hour-long discussion between (mostly) Rovelli and Freidel. For me it gave me a strong feeling of how little really is known, and how basic are the disagreements that are still possible between people follwing essentially the same research program. It is something what does not see so directly in papers or even in most conference talks.