Tamarin

Tamarin is an open source ECMAScript virtual machine from Mozilla. There is talk of adding many languages on top of it, from JavaScript and ActionScript (already supported) to Ruby and Python. However, the Ruby implementation will be built on top of IronRuby, which is a bastardized version of Ruby on top of Microsoft’s Common Language Runtime. It fires me up and gets me interested in creating a real version for Ruby. I want to strip out all these crazy layers whether it is IronRuby or RJS. Real Ruby, running on the open source ECMAScript virtual machine, manipulating your web site’s DOM.