AUM iOS audio Mixer: http://kymatica.com/apps/aum

http://kymatica.com/apps/aum This app although pricy (£19.99) looks to be the answer for creating a complete DAW on your iOS device - it chains together and mixes sound form multiple music apps and connects them to sync with many DAWs such as Ableton. You can also mix and export your sound form all the apps together on the single device -looks like a must for the serious music maker looking to make mobile music.