I just noticed that Richard released the last version of Flint. FYI Flint is an open-source project to create a versatile particle system in Actionscript 3. The aim is to create a system that handles the common functionality for all particle systems, has methods for common particle behaviour, and lets developers extend it easily with their own custom behaviours without needing to touch the core code.

Flint is developed by Big Room ventures Ltd. and is released under the MIT open source licence.

Check out bellow examples, which can give you a clear picture of the power of this AS3 PS.

Logo Fireworks

Sparkler

Mutual Gravity

Fire and Smoke