What exactly is being released as open source?
The Tamarin release will include the following components: • Source code from the ActionScript Virtual Machine (AVM2) as currently shipping in Adobe Flash Player 9, including the Just In Time (JIT) runtime compiler and conservative garbage collector. • A partial implementation of a prototype compiler written in ActionScript, which will be developed by the open source community to implement all of the ECMAScript 4th edition specification. This will be a “self-hosted” compiler that is written in the language it compiles.