Yes, I've heard of Transglutaminase -- partly because it's an enzyme and I'm a biochemist. But I read about it in the context of molecular gastronomy, the Ferran Adria kind of thing. You can buy kits on Amazon to experiment with some of the tricks of the new laboratory ways of cooking. I hadn't thought of the fact that you probably want to wear a mask when using it since you could theoretically glue your lungs shut!!
http://www.amazon.com/Ajinomoto-Activa- ... 566&sr=8-1The whole video piece was in based on the idea that this is a way for butchers/restaurants to cheat consumers. I hadn't really given that any thought. Mostly I've heard of it as a way to do clever things with fancy foods. David Chang's "Momofuku" cookbook has several pages on cute stuff to do with meat glue, starting on page 190.
They say it's the best way to make Ballotines, and they invented "shrimp noodles" -- noodles made entirely of pureed shrimp, mixed with a little glue and put through an extruder.