I have upload the Ruby Intepreter for Symbian S60 3rd Edition. You can download from this link, and install it on your Symbian s60 3rd phone cell. There are some limitation features that you can not find in this version. For example, after I tried this intepreter on my N73, I could not pass a parameter when run a script that receive a parameter. Once again, please refer to the official Ruby for Symbian site.