I ran into this today.  Great vid.  I find it quite a coincidence that just last night i was speaking about four-legged robotic with a robotics guy.  I said how the sighthound rear hip mechanics are most like robotics… compared to other dogs.  I continued by brainstorming that a sighthound-based robot would be able to  “run” incredibly fast.

Also, I often daydreamed what hi-tech armour would look like on a whippet or other sighthound.  In my head,  it looked a bit like the costumes in this video.