Bluejack City
By Ryan Olson

The Bluetooth search returned with precisely five victims. Note: From this point on, the adrenaline had taken over so I could not be held responsible for any of my actions, including smiling rather too much. I chose one phone from this list in particular, named 6310i, as I could see a lady in a stripy-pink top extracting her 6310i from her handbag-type-thing.

As soon as I sent the contact, I automatically went into 'alert' status...Not even 10 seconds later, just as I expected, a distinguishable beeping came from the direction of the pink-stripy lady that we had encountered earlier. And, sure enough, it was her phone that I was bluejacking. Pink-stripy lady had just become my first memorable victim.

This testimonial comes from Ellie G., a 13-year old girl from Surrey, UK. In October 2003 she started a web site that is now a busy meeting place for techie pranksters swapping stories and offering advice about their covert missions. It’s a place where cell phones and text messages are the weapons, malls and train stations are the hunting grounds, and the victims survive with little more than a tinge of embarrassment or confusion.

Bluejacking — described by some as a modern version of ringing someone’s doorbell and running away — allows owners of some cell phones and personal digital assistants to send anonymous text messages to nearby strangers owning compatible devices. Since Ellie launched www.bluejackq.com, articles about her, the web site and bluejacking are popping up not only on technology web sites such as The Register and Slashdot, but also in mainstream media outlets including the BBC and CNN. Bluejacking is possible because of a technology called Bluetooth, found on an increasing number of cell phones, PDAs, computers and even automobiles.

If you’re wondering why this is taking place now and involving a technology you’ve never even heard of, you’re not alone. A 2002 survey of British, Japanese and American citizens showed Bluetooth familiarity highest in the UK and lowest in the U.S. In Europe, the mobile phone industry drives innovation. In America it’s the PC industry, and in Asia, it’s consumer electronics, says Mike McCamon, marketing director at the Bluetooth Special Interest Group (SIG), an organization focused on promoting the technology. With the help of Apple's AirPort, Intel's...