BlueJacking and Hacker Emblem

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Bluetooth is the other 802.11 spectrum technology, which VerySoonNow will
be *the* way for PAN (Personal Area Networks) communication. It's also apparently
being used in cell phones and being hijacked by script kiddies to send unsolicited
messages to bluetooth-enabled cell phone users. The idea is simple, use the built-in
bluetooth function to send contacts to users, but use it to send messages to anyone
around you. My fear is that spammers would soon jump on the bandwagon....More information
on BluejackQ.

There's also apparently a movement to start an official hacker emblem based on the
glider pattern from the game of life (shown below).

More information on the emblem here.