Back in the day, DJ's needed to bring hundreds of CD's (or LP's, natch) along to a gig, because in the DJ game, one needs to be prepared. Nowadays, all a DJ needs is an iPhone and Numark's latest product, iDJ Live. As seen in the video above, the rig hooks to your iPhone/iPad/iPod Touch via the 30-pin dock connector and interfaces with Algoriddim's djay app: iDJ Live features two large...