Techradar posted a review on Apple Mac OS X 10.7 Lion

This eighth release of OS X brings us around 250 new features, many of which are inspired by Apple's mobile-device operating system, iOS. Unlike previous versions of Mac OS, it isn't delivered on a disc (though Lion flash drives are due in August, for £55). Instead, it's purchased, downloaded and installed from the Mac App Store. The App Store was introduced with OS X 10.6.6, so if you're running Leopard or earlier on a Mac that's capable of running Lion, you must install Snow Leopard before upgrading to the latest version of the operating system. But as Snow Leopard only cost £25 and Lion is a penny shy of £21, their combined price is less than half the usual going rate for a Mac OS.NEW LOOK: Mission Control and Launchpad are two of Lion's key featuresTo run Lion, you must have an Intel Mac with a Core 2 Duo, Core-i series or Xeon processor.

  Review: Apple Mac OS X 10.7 Lion