The G-keys on a G15 aren't recognised as keys by most programs.
You'll have to bind an already existing key (or combination) in the G15's profiler to the key before most porgrams recognise it.

I think he's asking for Keyclone to recognise the keys without having a binding.
It would only be usefull for the override keys or the PiP keys because WoW would still not recognise them.