New mobile message craze spreads: Cell phone users now have a new pastime — Bluejacking. Bluejacking is using the phone’s Bluetooth technology to anonymously text message other phone users who are within range.
“Research carried out for the Bluetooth special interest group, which oversees the development of the technology, suggests that more than one million Bluetooth-enabled devices are being shipped every week.
The idea of bluejacking originated on the message boards of the Esato website that is a favourite of many owners of SonyEricsson phones. “
There’s even a site dedicated to it: BluejackQ.