You can erase the camera shutter buy doing a recover operation in Carrier/SuperAgent RSS or Depot. BUT This performs a full reformat of your phone. So u have to decide if its worth it to you.
No you can't. That's the silliest thing I've ever heard. My Treo 600 doesn't have a shutter sound. If we all go by your logic, everyone who owns a Treo 600 would be arrested?
new law passed recently that all new camera phones must have a shutter sound or something that indicates to the person thats being photographed that a picture is being taken.