Privately SMS without Silent Switch! Want to simply SMS in private without having to silence all system sounds and alerts? Here is the answer, with silentSMS all sounds assoicated with ONLY SMS functions (and Keyboard Sounds) are muted, leaving all other iDevice System Sounds unchanged. Also included is the option for silent lock and unlock (in case your SMS application requires an unlock to read/respond). Normal vibrations are not changed. For use with Winterboard.