This was something borne out of a quick idea that I threw together at the beach last November. I've gone through a number of controllers over the last couple of years, and I think I've settled pretty well with the grid controllerist approach. I still like the physicality of having actual faders and knobs for controlling the mixer. MIDI Katapult has been awesome though, to have for customizing the layout of the Launchpad.
Song available at http://aplacebetweenyouandme.com