Quote Originally Posted by keyclone
if anyone was interested in Blizzard's take on this.. here is a thread from their forums:

Q: Keyclone legal for 2 boxing?
A: Yes, as long as you are in control of all the characters at once and isn't fully automated you're fine.

http://forums.worldofwarcraft.com/th...28516670&sid=1
There are no official words from Blizzard regarding Keyclone, Krypter who posted the above answer is not a Blizzard staff. Keyclone is in the same gray area as AutoHotKey. The best method is through hardware using mouse and keyboard strokes.