In keeping with past efforts, Apple has released a Firmware Restoration CD for early 2009 Mac Pro and Xserve models. The CD can be used to restore your computer's firmware in the event of an unsuccessful or interrupted update, though if that's already happened, you'll need to download the disc image and create a CD on another computer or bring your machine to an Apple Store or Apple Authorized Service Provider. The CD can be made on any Mac, but can be used only on the supported models. (Free, 22.5 MB)
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Verify Turned-Off Apple Wireless Keyboard
Can't tell if you've turned off your Apple Wireless Keyboard to prevent it from waking up an iOS device or running down its batteries? Tap the Caps Lock key, and if it illuminates, the keyboard is on; otherwise not.