I love the concept and have been able to play with this mixer in a live situation.  The only limitation I see for some gigs I work on is the limits of the inputs/outputs.  So the question is, is there a possibility in the future to be able to link two (or more) devices together to expand the system and utilise everything between the two?  The idea would for a system expansion, going from a 16(20):4:2 mixer to a 32(40):8:4 mixer by linking the two together.