What Ever Happened to APL?

geophile asks: "Is it still supported? Are there new applications being written in it? Has it been extended? Did it die? When and why? Whatever happened to those funky keyboards?" APL ^[?] has the distinct reputation of being one of the most cryptic programming languages ever invented, due to the fact that it's a language based entirely on symbols. Is anyone out there still using it? If so, for what types of projects?