If you're running OS 4.5 or higher (maybe even 4.3), MyAlarm will ask for you permission every time an alarm accesses a tone that is located on your micro SD card. It won't do this if you just use the included tone, but if you want to use your own on your SD card, then this would obviously be very frustrating as it wouldn't ring. You can try it yourself. You will find out that in order to stop it from asking, you have to enable your firewall. Options > Security Options > Firewall > enable.
-Gmail BIS integration with an effective 2-way read/unread sync solution
-Better integrated alarm (on legacy devices)