Know the caller's name without looking at the screen!
If you have Text-To-Speech installed on your phone and your phone is not set to silent, you'll hear the contact's name when you get a call.
ATTENTION: Android 2.2.2 mutes now all sounds except for the ringtone on incoming call. Until I'm able to bypass this, it will only work up until 2.2.1!
This runs on the background and quietly. It runs automatically at phone startup too.
It also respects your phone sound profile, meaning that you won't hear anything if you turned off your sound or have it to vibrate only.