Apple was issued US patent 8,254,902 on August 28th of this year for a technology that allows "others" to selectively disable features on your smart phone. I had a feeling something like this would come along sooner or later, since the technology allows that type of functionality. While there are probably some good uses of the technology, like disabling the ringer in a movie theater or courtroom, it seems to me this can easily be abused. For example, disabling the video or audio recorder function if within some distance of a police officer or police car - or disabling the call function at all. I draft patent applications for a living, and I think this is a pretty darn valuable patent. Haven't seen the closest prior art or prosecution history, but the fact it is an issued (granted) patent produces a legal assumption of validity.