Very cool. A 2004 Computerworld Honors Case Study on Kapital, a JP Morgan financial risk management sytem developed and maintained to this day in... Smalltalk.
Kapital started life back in 1992/1993... Technology is essential to the success of any high volume derivative business. The technological underpinning of Kapital is based on one of the earliest and some would say most pure object oriented development languages currently in existence – Smalltalk. The current incarnation of this language called VisualWorks has been married with a database technology called Gemstone. The combination of Smalltalk and Gemstone was the technology of choice at the start of Kapital. It continues to be the technology of choice today...It's not too late to adopt a language that works!