Take a look at Numark's "first and only legitimate DJ controller for gamers" in this turntable hyping video for Scratch: The Ultimate DJ.
I suppose it is the first video game controller created by a company that mainly manufactures DJ equipment, but to call it a only "legitimate" DJ controller seems like a direct dig at the competition. It certainly looks like solid piece of equipment, and with Numark doing it the quality should be excellent as well, but can't we all just get along?