Thanks to our commenters for the reminder

We probably should have posted this much earlier to clear up any potential confusion, but better late than never right? This is the same trick you use to install Lion final over the GM build (they are the same build number unless you have a 2011 MacBook Air or Mini), and really the primary purpose of this is so that you can make a Lion install drive or use the recently available easy Lion Disk Maker tool. If you’re already running OS X Lion and you do this, you’ll get a pop-up warning that says “A newer version of this app is already installed on this computer” but you can click again and download anyway. If you already bought Lion, you should not be charged twice for any additional downloads of Lion. Option-clicking on OS X Lion from Purchases and then the “Install” button from the OS X Lion App Store page hasn’t failed us, but there do seem to be conflicting reports. Some users have trouble with that method, and instead they can try holding Option while launching the App Store in addition to when clicking on the greyed out installer next to OS X Lion, allowing you to download again. “Installed’ should now say “Install” which allows you to re-download OS X Lion, otherwise you can Option-click again on the “Install” button to start re-downloading OS X Lion, shown in the screenshot above.Option-click on “OS X Lion” from the purchased app list.Hold the Option key and click on “Purchases”.

Label software for mac os x lion