I don’t know, if this is possible with the current hardware, but it would be really great to use the ME-system as a remote control for aux-sends on the Allen&Heath digital mixers. Compared to the iPad app, it would really be superior in usability, while still keeping the sound engineer in control.
I could also imagine to use this to expand the surface of the mixer e.g. for critical In Ear mixes to have them in direct access