This image was lost some time after publication, but you can still view it here.

Apparently at the Musikmesse show Numark was showing off this prototype iPod DJ mixer, but didn't want people to take photos. Unfortunately, they hadn't bothered to mention that until a few days after the show started, so German hip-hop site WebBeatz has some basic information. There's not a lot to know off hand, but it's sort of self-explanatory.

Analysis: Prototype Numark iPod DJ Mixer [CreateDigitalMusic via Engadget]