It would be superb. I have communicated to them, you can supply your own lower and pedals if wanted, and buy their SW to make this work. Also they sell a nice expression pedal with 2 side switches built in, YES!

They also have a box that lets you MIDI the lower Yamaha NP32 to the Genos, it is needed as the new Yamaha's ONLY have USB not real MIDI connectors, (shame on Yamaha). It has MIDI thru as well so if you use the pedals you can connect to the MIDI in on Genos (only 1 MIDI in). I'll probably get all this.

ALSO, they do have a similar setup for SX-900!!!