Looks like the Mud Puppy was a blade show exclusive, according to the sticky up above. Looks like a very handy little thing.

"In my above post I was talking about the Muppy. Dan needs to come out with one again but with a 4.5 inch total length blade of which 4 inches is the actual cutting edge. And he needs to keep the same kind of choil."

After looking at it again in the "Specs" thread, That'd be a very useful knife.