Hot on the heels of iTunes 10.2, Apple has released iTunes 10.2.1. The update helps with syncing iOS devices running iOS 4.3. It also improves Home Sharing for iOS 4.3, which allows you to stream music from your iTunes collection on your Mac to your iOS devices. In addition, an issue where syncing photos to your iOS devices could take longer than expected is corrected. (Free, 75.61 MB)
Option-Click AirPort Menu for Network Details
If you hold down the Option key while clicking the AirPort menu in Mac OS X 10.5 Leopard, you'll see not just the names of nearby Wi-Fi networks, but additional details about the selected network. Details include the MAC address of the network, the channel used by the base station, the signal strength (a negative number; the closer to zero it is, the stronger the signal), and the transmit rate in megabits per second showing actual network throughput. If you hover the cursor over the name of a network to which you're not connected, a little yellow pop-up shows the signal strength and type of encryption.