Apple today announced that CEO Steve Jobs will kick off its Worldwide Developers Conference (WWDC) with a keynote address beginning at 10:00 a.m. PT on Monday, June 11, 2007 at San Francisco’s Moscone West. At WWDC, Apple plans to show developers a feature complete version of Mac OS X Leopard and give them a beta copy to take home for final testing. Leopard is scheduled to ship in October. The five-day event, scheduled to run from June 11 to June 15, will deliver more than 150 sessions and labs aimed at getting the most out of Leopard. The conference will also include new content to serve a wide range of developers, including Mac OS X Immersion Monday, designed to quickly get developers who are new to the Mac up-to-speed; a content and media track that shows developers the best ways to integrate animation, motion graphics, video, rich-media and web-based content into their applications; and dozens of hands-on labs that offer a unique opportunity to work directly with Apple engineers. The five-day conference costs US$1,595 per attendee, with a $300 Early Registration Discount that has been extended through May 11.