Apple will be holding a one-day shopping event on Black Friday, according to a teaser up on Apple's Web site. Every sale on the Apple Store is an event, as it happens very rarely, and discounts on Apple products are meager throughout the year. That is, if this is an event full of discounts and sales. The interesting part is in the wording:
"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."
However, anyone who is familiar with how Apple works, one would surmise that Apple is referring to iPhone accessories as the "gift ideas" and not the device itself.
Furthermore, and not to play devil's advocate here, but this teaser is for an Apple Online Store sale. Not to mention that this promotion is only up on the New Zealand Apple Store currently, as MacRumors notes -- but it will undoubtedly be up for other parts of the world as well soon.
Although, Apple isn't specific as to what products they will offer at this "special one-day event" on Friday, the symbol on the teaser page pretty much contains all Apple products. Most likely, one of the products that Apple will offer hot deals on would be the iMac as it wasn't updated this fall and new iMacs should be coming early 2009.
In the meantime, Best Buy currently offers $50-$150 discounts on Apple Computers.