fwiw evilseed plays on the same realm/faction I do (Blackrock horde) and I have seen his team in wintergrasp, he is able to summon up all the stuff and bring out the treants and all that jazz. Of course he is 2-37 in 5s arena for the season so its not like it helps him in any way at all for PVP, but I don't knock him for that, I'm 0-40 (dont even enter arenas anymore).

Anyways never understood the big fuss, as people have said AHK (free I think?) does this, Innerspace does this ($40/yr?), and with a little bit of kludging and window layout Octopus (free) does this too.