Yes, I know I can switch off the ringer with a mechanical switch (which is hard to reach with the thick rubberized protective cover on my iphone 4s), but I'd sure like a jailbreak app that actually will silence the ringer and any other audible notifications until I shut it off. Not on a schedule or a timer, but... ON or OFF. Any suggestions? I couldn't find any that worked via the CYDIA site... Thanks!