Apple has quickly issued MacBook Pro (Retina) Trackpad Update 1.0 for its just-released MacBook Pro with Retina Display to address an issue that affected the trackpad’s responsiveness (see “New MacBook Pro Features Retina Display, Flash Memory,” 11 June 2012). The updater will be installed into the Utilities folder within your Applications folder, and will launch automatically. (Free, 1.26 MB)
Option-click to Hide Apps Quickly
This trick has been available in the Mac OS for years, but many people still don't know it. If you have too many windows cluttering up your screen, you can hide specific ones easily as you work. When you're in any application, hold down the Option key and click on another app's window, on the Dock, or in the Finder to switch to that other app and simultaneously hide all the windows in the previously current app.