I reckon spending the day in central London would prove that not to be the case. The difference with this and iPods/iPhones is that those things can at least be secured in a pocket or a hand - this thing is there floating on you, out of your context. One bump on the tube and it's gone. One kid running past you before you can move your hand to hold it, and it's gone. Street kids will totally know what this is, they're really tech savvy, particularly with new tech. One of the most prevalent groups using Blackberries back in the day were street kids. One wouldn't think street kids know the value of luxury wrist-watches, but people are being held up all the time to have them stolen from them. Stealing one of these pins, even for lulz, is beyond trivial if its only attachment is a magnet.