[coolestuk]

DabbleDB was written using Seaside, a framework which ran in Squeak (and other Smalltalk implementations).

DabbleDB met with rave reviews. http://press.dabbledb.com/ Within a couple of years the company behind it were bought by Twitter (2010) and DabbleDB closed down. http://en.wikipedia.org/wiki/Dabble_DB Clearly Twitter didn't buy this Smalltalk company because their product was a threat to Twitter.

It may well be that there are hugely successful corporations who are using Smalltalk and keeping quiet about it. Or it may be that being a successful Smalltalk developer is a sign of being a great developer.