But one key feature of the Mac App Store is that a single purchased license permits downloading of the software to any machines owned or controlled by the person linked to that Apple ID and logged in with the account. That key feature means that the iLife licenses issued to new computers via the Mac App Store permit users to download the software to their other Macs that may not have been upgraded to the latest version of iLife.
Purchase an app on your laptop, and you can launch the Mac App Store app on your iMac, click the Purchases button, and install that same app without having to purchase it again.
The iLife license you get when you set up one of the latest Macs is no different. Which means that if you haven’t yet gotten around to upgrading to iLife ’11, buying a new Mac mini or MacBook Air essentially gets you iPhoto, iMovie, and GarageBand for all your Macs running OS X 10.6.6 or later (since you need at least that version of Snow Leopard to run the Mac App Store). And this isn’t sneaky or dishonest—it’s right there in the Mac App Store’s software license.