Mac OS® X version 10.4 “Tiger,” the next major release of the world’s most advanced operating system, will go on sale Friday at 6:00 p.m. at participating Apple® Authorized Resellers and Apple retail stores worldwide. All 105 Apple retail stores will host “Tiger World Premiere” events from 6:00 p.m. to midnight offering workshops and hands-on demonstrations of Tiger’s hottest features, plus giveaways at every store including a chance to win a PowerBook® G4, iPod® and more.

“Starting tomorrow night, features like Spotlight and Dashboard will change the way millions of people use their computers,” said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. “Our competitors will be trying to copy Tiger’s more than 200 new features and innovations for years to come.”

Tiger delivers more than 200 new features and innovations including Spotlight™, a revolutionary desktop search technology that lets users instantly find anything stored on their Mac®, including documents, emails, contacts and images; and Dashboard, a new way to instantly access important information like weather forecasts and stock quotes, using a dazzling new class of applications called widgets.