Laying ?the foundation for the next generation of personal computing,? Leopard ?redefines what personal computing looks like,? according to Michael Gartenberg (computerworld.com). And Gartenberg offers a litany of Leopard features by which he?s impressed. ?Cover Flow, a feature first used in iTunes, lets you browse files visually and then see a file?s contents without opening it.? He argues that ?Apple?s IM client, iChat, runs rings around what?s available for other systems.? He?s always used his ?e-mail in-box as a to-do list,? Gartenberg admits, ?and Apple?s Mail client makes that really work.?