DJ stories

Scratch DJs, or turntablists as they like to be known, thrive on the tactile interface of a vinyl record which they carefully spin and manipulate by hand to create their art. More recently people have come up with various way to control digital files as if they were records, but none seem quite a slick as this setup using two iPod Touches or iPhones.
If you're going to be a DJ, you need to worry about image, because that's half of what being a DJ is all about. I mean, it's very impressive that you can line songs up in a pleasing sequence, but if you don't look cool doing it, what's the point?
Ever wonder why vinyl albums died? Could it be because they weren't portable? Probably not, but imagine how cool it would be if turntables were portable. How much more entertaining would it be to see your favorite scratch artist moving...