That looks beautiful. Memphis is already one of my favorite zoos even without seeing this new exhibit, but now it is even better. And with new hippo exhibit opening in 2011 (I think) and possibly a boardwalk through the native forest on the edge of the zoo, it is definitely a top destination.
I hope to go back in the Fall of 2011, when they are hosting the annual conference of the Association of Zoo & Aquarium Docents.