Bob points to something I missed today - the Adventa success story. Here's what Adventa says about Smalltalk:

Yes, there are more engineers in the world who know "C", there are more who claim to know C++ and "Visual this" and "Visual that" but the fact remains, and we prove it every day, there is not a software engineer anywhere, working in any language, that is more productive than a "Smalltalker." It was obvious to us in 1988, in the year 2002, there is still "none-better." JAVA? Maybe, someday. Right now, JAVA is many years behind Smalltalk in terms of maturity, capability, reliability, etc. It's good for lightweight apps, but can't match Smalltalk for productivity and reliability.