As a convenience, Apple allowed users to bring their Macs to a nearby Apple Store and use Apple’s WiFi to make the download. You must have OS X 10.6 Snow Leopard installed to purchase, download, or install Lion, and the 4 GB download could take some time with slower DSL connections (we don’t even want to think about how long it would take with dial-up). Lion was only available by purchase and download from the Mac App Store, where it retailed for US$29.99. Some of these changes were to make it easier for iPhone, iPad, and iPod touch users to adapt to the Mac, some to make the two platforms work better together, and some to keep making the Mac better and better. OS X 10.7 Lion was released on Jand made some huge changes to the Mac. It also includes improved Yahoo support and FaceTime calling. It included the following changes over OS X 10.6: Address Book now uses an iPad-like user interface. Mac OS X 10.7.0 was released on Jas a new feature release of Mac OS X.
