Ever wonder if “Bluetooth” has any intrinsic meaning? From Take Control: The Mac Lexicon, by Andy Baird and Sharon Zardetto:
A short-range, medium-speed wireless technology used mainly as a replacement for cables in connecting computers with printers, headsets, cell phones, and other peripherals. Most Bluetooth devices are Class 2, with a maximum range of about 30 feet (10m); Class 1 devices can reach up to 100 feet (30m).
Named after Harald “Bluetooth” Gormson, king of Denmark from about A.D. 935 to 985, it was supposedly chosen because he united Denmark and Norway (at least temporarily); hence, the logo combines the Nordic runes for H and B.