Tamarin and ECMAScript 4 John Resig (ejohn.org) Mozilla Corporation The Big Picture ECMAScript 3 JavaScript 1.5 JScriptActionScript 2 Etc. SpiderMonkey Rhino AVM JScript Engine KJS (Apple) Opera The Direction ECMAScript 4 JavaScript 2 ActionScript 4 Tamarin JScript Etc. Screaming Monkey KJS (Apple) Opera Tamarin ✦ Tamarin ✦ New Virtual Machine from Adobe ✦ Perfect for ActionScript ✦ (a mutant cou