Apple has posted some details on the various conference sessions that will be available at the Worldwide Developer's Conference 2007. The sessions are divided into 6 tracks: - Leopard Innovations - Mac OS X Essentials - Information Technologies - Developer Tools - Graphics and Imaging - Content and Media The Leopard session descriptions are not particularly revealing, but does remind us of some upcoming features of Leopard that have previously been revealed: An original overview of Leopard remains posted on Apple's site, but Steve Jobs hinted in August 2006 that several "top secret" features of Mac OS X 10.5 (Leopard) were being held back in Leopard and would not be revealed until a later date. Very few details about these secret features have been leaked to date, but many have speculated on significant visual changes to finder. Leopard has been targeted for a "Spring 2007" release. WWDC 2007 takes place between June 11-15th in San Francisco.