There's no doubt that IK Multimedia are a company passionate about iOS. They have released a plethora of devices and accessories for the iPhone and iPad based musician and now they have turned their attention to the iOS DJ as well...
The DJ Rig concept
IK has really thought DJ Rig through. Essentially what the software offers is a complete DJ mixing, editing and recording environment, running completely on iOS. It can run on iPhone (3GS and up) or iPad and allows you to use your own local mp3 library.
IK Multimedia DJ Rig!
Although there are other iOS DJ tools on the market, this one is possibly the most fully featured app out there and arguably the first one that's really viable for the pro DJ. Let's take a look at a few features so you can get an idea of what DJ Rig can do.