Interesting, Foxy! I didn't know that was actually a dance...my first instructor taught that for exceptionally slow songs, but she called it "Glide Rhythm Foxtrot" and claimed she made it up! I just taught it to a couple who are using an instrumental version of "At Last."
Actually, there's also a dance called "Night Club Slow", which is great for slow, undanceable songs. I have seen it done once, so I couldn't possibly teach it or describe it (kind of a combination of bolero, nc 2 step, and foxy, I guess).