kamishki:

I hope that you can try out Mephemeris, so that you can share your thoughts about it later

Actually, I have no idea why your app doesn't start up properly. No one (including myself) has reported running into such a problem. My suggestion -- if you are able -- is to start it from a shell command line, so that you can view any messages produced. Do you know how to do so -- either on the tablet itself, or remotely connected to a shell via ssh?