So I’ve made an iPhone app. It’s meant for making radio stories, but can be used for music or sound design. Here’s the official description:
Monle is a four track, non-linear audio editor for the iPhone and iPod touch. You can record new audio, import prerecorded audio, cut it up, rearrange it, add fades, set volumes, zoom in and out, mix everything down, share audio with other applications, and send the audio wherever you want.
More info at: MonleApp.com.
It’ll be available in the iTunes App store early April.