Alec, i think what you are talking about is the polygon mode of the Edit Mesh system. it sits right next to vertex, edge, and element mode, yes?
What I am talking about is a newer system that Autodesk made in order to better handle quad-based meshes (which are better at meshsmoothing). It's basically a rewrite of the Edit Mesh system. It sits right along side the Edit Mesh, Edit Patch, and -=shiver=- NURBS. I don't know why they went with overlapping terminology, but its annoying.