SilenceZone is an App that will help you remember when to put your iPhone Silent. (http://itunes.apple.com/us/app/silencezone/id520889750?ls=1&mt=8) All you have to do is to define the zones where you want your phone to be silent and the app will remember you when you get there, it will even remember you to put your phone back in ringer mode when you get out! It's easy to use and extremely usefull. For more information: Visit us on our website: www.silencezone.webs.com Or follow us on twitter: http://twitter.com/silencezoneapp