>>If you’re running iOS 5, you can access these options in Settings from the General > Accessibility menu.
With custom vibrations, we can change the standard vibration and assign vibrations to individual contacts — just like we’ve been able to do with ringtones all along. Apple is providing a handful of pre-made vibrations, but it also provides a custom vibration recorder which has you tap in a pattern. It’s more fun than it sounds.
This means that we can now identify who is calling us in a loud nightclub or when our phones are on silent. It’s a small gain, but if you’re used to deciding whether to take your phone out of your pocket based on which ringtone is playing you’ll probably quite like this new feature.