Numark and Akai seem to have finally got that the iPad is a useful tool for DJing, provided it has some matching hardware. We've seen the iDJ Pro earlier this week, but the Akai MPC Fly was finally seen at NAMM. I was simply a non-functioning prototype kept in a glass cage, but we happened to be in the right place at the right time to get a demo of the actual app from the developers at Retronym.