Apple has posted a Black Friday teaser page for all you Apple Fanboys out there to drool over. While there are no specifics listed yet the page shows some hints of what to expect.
"Come back to the Apple Online Store this Friday for a special one-day-only Christmas shopping event. You'll find dozens of great iPod, iPhone and Mac gift ideas - all with free delivery."
The images on the page refer to almost every one of Apple's current products, so one can assume they'll have deals for many of them. I'd wager a guess at saying you won't see reduced prices on the MacBook Air, iPods or iPhones, but rather reduced prices on accessories.