mobilesynth - Open Source iPhone Synth

"mobilesynth is an open source classic monophonic synthesizer, designed for live performance. Developers are encouraged to visit the website and contribute.

Features
* Monophonic, playing one note at a time like a class synthesizer
* Oscillator Module
o Dual oscillators
o Square, Triangle, Sawtooth, Reverse Sawtooth waves
o Octave selector, supporting 5 octaves
o Glide between notes (Lag Processor)
o Oscillator fine tine (more than one full octave)
o Oscillator sync
* Low Pass Filter Module
* Modulation module
o Tremelo/Wave
o Vibrato/Pitch
o Filter
* Envelope Generator module
o Supports ADSR (Attack, Decay, Sustain, Release)
o Volume
o Filter (amount of low pass filter) "

available on iTunes here


Note mobilesynth is from Google developer, allen.porter who lists the following:
Project Ownership:
arpspyx
iphonedisk
mobileterminal
thebends
open-tracker
itone
openloop
mobilesynth
Project Membership: iphone-dev