I hadn’t seen this before but stumbled across it peering through obscure forums for hints and speculation about the processor upgrade cycle for the MacBook Pros. It’s remarkably accurate:

http://www.misterbg.org/AppleProductCycle/

Favorite quotes:

As Macworld or the Worldwide Developer’s Conference draws near, the chatter builds to a fever pitch. Rumor sites jockey for position, posting a new unverifiable, contradictory rumor every hour or so.

…

Movie stars, professional athletes and rappers begin accessorizing with Apple’s new gadget. Shaquille O’Neal appears on the cover of ESPN The Magazine using one. Mac fans unconditionally forgive him for Kazaam.

…

Somebody starts a thread on a Mac chat board that asks whether anyone knows of a way to use the new device with some other nerd toy in a way that makes no sense whatsoever. Out of the blue, somebody writes a hack that facilitates the unholy combination and offers it as $39 shareware. Seven of the nine people who actually try to use the hack download it off of BitTorrent and use a pirate serial number. Advocates point to this as an example of how independent Mac software development is thriving.

(HA!)