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Except that it doesn’t, by default – as the story in the Times mentions. You need to set it to block certain “numbers in the adddress book, such as former girlfriends or boyfriends, bosses, parents and kebab houses” when the built-in breathalyser detects that you are over the drink-drive limit.
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Via MAKE, an article from Electrical Design News looking at lithium battery authentication chips in products such as phones and laptops, designed to prevent users fitting ‘non-genuine’ batteries.
Now, the immediate response of most of us is probably “razor blade model!” or even “stifling democratic innovation!” (as Hal Varian or Eric von Hippel might put it), and indeed that was probably my own instinctive reaction.
It’s not clear, though, that this is a standard architectures-of-control-enforced-razor-blade-model of the kind we’ve seen with printer cartridges.
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High frequencies being tested in the urban badlands: see, no teenagers here!
A lot of people find this site through searching for something along the lines of ‘Mosquito high frequency anti-teenager ringtone’, and are presumably disappointed when they find that there is no such ringtone to download, even if just because they’d like to test it on friends and family. (More on the Mosquito device) There’s also the more possibility of course of using the ringtone as a kind of ‘secret ringtone’ that, supposedly, only younger people can hear, so you can receive text messages, etc, e.g. while in class, without adults noticing, though I’d have thought that was partially the point of the vibrate mode.
Anyway, I thought I might as well give those searching what they’re looking for, sort of.
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