I have corrected a few FC-bugs as well as bugs that made the SMS-replies never being sent.
Also I have added basic functionality to receive and send email with the position. This requires you to have K9 mail properly set up for the account to receive the secret text. The response is sent through a gmail account of your choice.
I still have a few bugs concerning SIM-change handling.
After fixing this, I will probably release the app as a beta.