Developer nTrackSoftware released a demo video of their new Audioroute. This is their Audiobus-style Android Audio and MIDI routing SDK released last month.
This is a demo of how the new Audioroute SDK for Android allows audio and music apps to exchange audio and MIDI.
The apps shown are currently developer samples. The 'Simple Synth' and 'EffectDelay' apps's source code is included in the SDK. The Host Sample app is available on Google Play and is meant to be used by developers to test their apps.