Apple today released MacBook Air Bluetooth Firmware Update 1.0 which the company recommends be installed on all MacBook Air Systems.
The updater application will be installed in the /Applications/Utilities folder.
To complete the bluetooth firmware update process, please follow the instructions in the updater application (/Applications/Utilities/MacBook Air Bluetooth Firmware Update.app). The updater will launch automatically.
For more information about firmware updates for Intel-based Macs, please visit: http://support.apple.com/kb/HT1504
System Requirements: Mac OS X 10.5.1 or later
MacBook Air Bluetooth Firmware Update 1.0 is available via Software Update and also as a standalone installer.
More info and download link (1.2MB) here.