You really should look at Squeak as well. <a href="http://squeak.org/" rel="nofollow">http://squeak.org/</a><p>Pharo is a great implementation of Smalltalk, but Squeak has moved the Smalltalk ideas forward into new territory.
Interesting tour back in time. I had a loaner Smalltalk license in the early 1980s for my Xerox Lisp Machine.<p>As one commenter in the article mentioned, there is Pharo. Pharo is open source and very good.
If you are really interested, have a look at Pharo. If not, yes, it is dead.<p>A warning though. Smalltalk is seriously mind-bending for those who come from more routine languages/environments.