I do like the use in theaters and restaurants, but I have issues with the way some of the people were using them. I'm with kutulu on this:
Quote:
Originally Posted by kutulu
How pathetic must someone's existance be if they are so upset by someone on a cell phone or need to find pleasure by interrupting someone else's private life? People like this need to get the hell over themselves. It disgusts me.
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But as for the criminal intent, I'm sure that criminals could have been using these for a while. I doubt it's very hard to design a small circuit with a transmitter that allows you to jam radio signals.