Heh, funny story :

Last night I put flipclock to wake me in the morning,
in the morning I woke up 30 minutes AFTER i am suppposed to be at work, 1.5 hours after flip clock was supposed to wake me up.

I carefully checked to see what I did wrong, It did trigger, but there was no sound.

I suggest a mechanism to simulate the result of the configuration, so you can make sure it works, and get a warning if the application discovers it's not gonna make a sound.

Example :
1. The moment I hit alarm ON, or exit the window, the program will :
2. Check the MP3 file exists / check FM antenna existence.
3. Check the phone is not in any silent mode if that stops it from ringing
4. Check the deamon is running
5. Notify the user if something is wrong.