One thing that would be very useful for an application like this would be to have separate midi export. It is an application well suited for composing in a fast way and if it had separate midi export it would be easy to import into any DAW or Caustic (Caustic being one or the only application that can import seperate midi files into separate tracks).
As I see it one thing that makes it hard to finish actual songs is that it is easy to get distracted with all the funky things you can do with effects, automation and just sculpting your sounds in the sound generators / Synthesizers. If there was a General Midi composer where the distraction did not exist and you could easily export to separate midi files there could be a big improvement in workflow.
So it is Beta and the developer needs help so please download it and give him suggestions!
(One thing that i noticed in this Beta version is that you have to tap twice on the menu items which can trip you up and dismiss the app.)
He made another app before this that is interesting to and it is a sequencer app with a few select instruments making it into good sketch pad. It is more directed to sketching out music for a pop / rock band than electronic music but can of course be useful for anything and it offers a few things that you do not see in other apps.
Here is a video of his other application (for free and no publicity).