20 July 2011 / 14:07BST Mac OS X Lion has been released. What to do next? First read our Mac OX X Lion ultimate guide, then decide if it’s worth the £20.99, and head for the Mac App Store to buy it here. Also Mac OS X Lion ultimate guide Need to know – Mac OS X Lion Need to know – iCloud Need to know – iOS 5 Read Apple reviews Liked that? Read this... News Mac OS X Lion USB thumb drive yours now for £55 Mac OS X Lion gets 1 million downloads on first day Mac OS X Lion review Mac OS X Lion USB coming soon Mac OS X Lion secrets Stay on top of tech with Stuff in your inbox every week Thank you for registering for our Newsletter We will send you relevant emails and updates.