The design appears to be eminently suited to a revised "box". I bought one of these from Mike Skeet years ago who sadly is no longer with us.
Otherwise, a circuit design which turns the launchpad into a bargraph audiometer? I currently run a Roland R-88 (8 channel audio field recorder), with a very small led display. It would be so useful to plug the launchpad into the R-88 usb port (with/without iPad?) and monitor the 8 audio channels! Or maybe use a small microprocessor in between the two devices?
I don't want to have a PC/MAC when I'm doing location sound recording, so keeping kit small or to the minimum is important.
Thank you in anticipation to anyone who maybe interested?