The Flash platform evolves quickly
One of the distniguishing characteristics between Flash and Web Standards is the rate at which Adobe advances the Flash Platform. Every 18 months or so a new version of the Player and authoring tools is released with additional features, performance enhancements and general improvements. This pace can be maddening (and expensive) for developers to keep up with, but it also really drives innovation.
In the grand tradition of Max, Adobe launched, announced, or otherwise went public with a flood of new things for the industry to wrap its head around. Here is a cheat sheet to help keep some of the Flash related advancements straight.