When can we expect more feature on Kind Buttons?

I've been hearing (since the release of H4), that the Kind buttons will eventually have more uses, ie: executor functions, cue triggers etc.
Is there any truth to this? If so, how soon can we expect it?
IMO, this would be the one thing that could make Hog a perfect console (and maybe an official iPhone/iPad/Droid RFU app).
Cheers!!