There’s a new cellphone jammer out which disguises itself as a cellphone (to better escape detection, we presume). The SH066P comes in two versions, one for jamming cellphone signals in North America, and another for the rest of the world, and can render useless all of the cellphones within a radius of about 10 to 15 meters. I’m sure we can all think of plenty of times when one of these would have proved handy. Cellphone jammers are totally illegal to use, but like radar detectors they’re perfectly legal to buy in most places.