Now I know, this is the *ruby*-talk group, but since we're talking about 
Smalltalk, and many of us would like to compare OO languages and 
systems, I think this is on-topic.

IBM has released Visual Age for Smalltalk, and apparently you can freely 
evalulate it and play with it.  See the article on Slashdot:

http://developers.slashdot.org/article.pl?sid=03/08/18/140200

Ben