Fun & Games From Mbites:
"I figure if Warchalking - the practice of "marking a series of symbols on sidewalks and walls to indicate nearby wireless access" - got such a lot of press, why not Bluechalking?
Bluechalking is the invented-by-me-but-as-yet-non-existent-practice of marking a Bluetooth symbol on sidewalks/pavements and walls to indicate that someone with a Bluetooth-enabled phone is often in the area, using the Bluetooth symbol and your phone's 'name'.
The idea would be to explore an entirely new kind of wireless social interaction. A kind of consensual Bluejacking."