Blip Interactice presents NanoStudio for iPhone, that features 4 synths with 2 oscillators and 8 notes polyphony each (also resonant filter, 4 LFOs, 3 ADSR, 2 X/Y controllers and 2 insert effects pear synth – also available as send among waveshaper, chorus/flanger/delay). External (imported) samples can be used instead of waveforms (latency is 10ms). Two TRG-16 Trigger modules (16 pads) also allow to trigger samples (bundled, or imported in Aiff format – also editing through touch). The sequencer is very powerful (and the interface very intuitive and quick responding) as we can see in the video, and final mix can be exported through wifi (using NanoSync Mac/PC application).
It is priced 11,99 euros at the AppStore, and a Mac/PC version is provided for free (without touch management) here