MacMost Now 863: iPhone Custom Vibrations and LED Flash Alerts
You can set custom vibration patterns for your iPhone to use in addition to custom ringtones. You can use these vibrations to tell who is calling you, or what type of alert you have received. You can also set your phone to blink the LED flash so you can see an alert in addition to hearing and feeling it. You can turn off vibrations and silence your phone and still see the LED alert.