iPad DJing has quickly become a popular if small subset of the music scene; artists like Rana June Sobhany have shown that one or two iPads and a mixer create an extremely portable deck and surprisingly varied mixes. Algoriddim is trying to take that one step further with Djay, where it's hoping to recreate much of the twin-turntable-and-mixer experience on a single screen. We'll find out whether DJs really can skip the notebook or the vinyl in our Djay for iPad review.