Official announcements have mentioned a September release date for Snow Leopard, but rumor has it we could see it arrive as soon as August 28th (1, 2). In the past when Apple has given a month or season timeframe for a product release they have pushed it back as far as possible in that window, but with Snow Leopard in development for so long perhaps they have finished things up sooner than expected. Recently people have spotted the availability of Snow Leopard in a "MacBox Set" on the Apple Store, which seemed to be a slip by Apple but indicates the release is just around the corner.
