Wish you could automatically "shush" the people around you while you try to concentrate on an important task?
Want to wake up at the slightest noise around you in an unfamiliar environment?
Librarian for the iPhone does all of this (and more coming soon)!
Simply set the audio level sensitivity and tap start to begin. Once the noise surrounding you exceeds the set sensitivity level, the librarian will shush those around you. A slight delay afterwards prevents excessive shushing.