Apple has released several firmware updates for Intel-based Macs, a restore image to recover if the update trashes your computer, and firmware fixes for Apple’s keyboard. I applied sveral of these on multiple machines without issues. Just fire up your software update app or you can download them directly.

MacBook Air EFI Firmware Update 1.0: This update fixes several issues to improve the stability of MacBook Air computers.

MacBook EFI Firmware Update 1.2: This update fixes several issues to improve the stability of MacBook computers.

Mac Book Pro EFI Firmware Update 1.5 This update fixes several issues to improve the stability of MacBook Pro computers.

iMac EFI Firmware Update 1.3: This update fixes several issues to improve the stability of iMac computers.

Aluminum Keyboard Firmware Update 1.0: This firmware update addresses an issue with the aluminum Apple Keyboard and the aluminum Apple Wireless Keyboard where a key may repeat unexpectedly while typing. The update also addresses other issues. Mac OS X 10.5.2 is required before installing this update.

Firmware Restoration CD 1.6: The Firmware Restoration CD can restore the firmware of an Intel-based Macintosh computer.