OSCemote is a remote control application for the iPhone and iPod Touch. It lets you send Open Sound Control messages to other programs like Max/MSP, Puredata, Eyesweb, Processing, etc.
links for PD (Pure Data), Supercollider, Max/MSP, Analog to Digital Interfaces, OSC protocol, ChucK, Python, Java, Director Xtras, processor art, music software.