A day after unveiling its updated slate of MacBook Pros, Apple released MacBook Pro (Mid 2012) Software Update 1.0 for all the new models — covering the 15.4-inch Retina Display version as well as both 13- and 15-inch sizes of the non-Retina models (see “New MacBook Pro Features Retina Display, Flash Memory,” 11 June 2012). Apple states that the update improves graphics stability, external display support, and USB 3.0 device support. (Free, 1.06 GB)
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.