Last week, Native Instruments released the TRAKTOR DJ app for the iPhone and iPod Touch. It piggybacks off the iPad version, with an interface optimal for the other devices. The app is a continuation of Native Instrument’s goal of using touch-controlled waveform displays to interact with music. TRAKTOR DJ features a dedicated 3-band EQ, filter sections, and 8 effects, in addition to the ability to adjust each waveform via a touch filter. Other features include the ability to set loops, scratch, mark cue points for re-editing, and advanced performance add-ons - Freeze Mode, tempo direction, recommendation engine. Purchase from the App Store for $4.99 here.