There is a Smalltalk implementation in Factor http://factor-language.blogspot.in/2009/04/sup-dawg-we-heard-you-like-smalltalk-so.html http://factor-language.bl

There is a Smalltalk implementation in Factor http://factor-language.blogspot.in/2009/04/sup-dawg-we-heard-you-like-smalltalk-so.html http://factor-language.blogspot.in/2009/04/sup-dawg-we-heard... Also from that page, "If you want to experiment with language design but don't want to spend five years implementing a language like we did, you should consider using an existing system to host your language on, and Factor is one of several great choices in this regard." - Slava Pestov, Creator of Factor