Apple on Tuesday released a 1.5 MB \"Bluetooth Firmware Update for Mac OS X 10.4.3.\" According to a brief set of release notes, the update improves Bluetooth performance and reliability issues. The Bluetooth Firmware Updater supports D-Link USB Adapters and Apple internal Bluetooth modules on the following CPUs: iMac G4 (Gooseneck), 12\" Titanium, PowerBook, 15\" Titanium PowerBook, iMac G5 and Mac Mini.