Numark iDJ Live
Everybody secretively wants to be a DJ. If you own an iPad 2, you can take reveal that secret to the world with Numark's iDJ Live accessory
(US$100). It gives your iPad real DJ controls including two performance platters, a central mixer section with a crossfader, buttons and knobs, and an audio cable to connect to speakers and headphones. Though its not designed to appeal to professionals, if you're a casual user who likes to mix your own beats, iDJ Live will be perfect for you.