Even though there still aren’t any mainstream Thunderbolt peripherals, owners of Thunderbolt-equipped Macs should probably install the Thunderbolt Firmware Update to be ready. All Apple is saying is that it “provides Thunderbolt performance and stability fixes,” but given how new Thunderbolt is, it seems likely that Apple would still be squashing bugs. Since this is a firmware update, be sure not to interrupt the update process that starts after your Mac restarts. (Free, 486 KB)
Undelete an iPhone Voicemail Message
There's no Command-Z in the Phone app, but you may be able to retrieve a deleted voicemail message: Open the Voicemail screen in the Phone app. At the bottom of the screen, tap Deleted Messages. To restore a listed message, tap it and then click Undelete.