We have a joke in the PL research community that most of them are working on...ads. But really, there is a lot of PL work that you don't see that doesn't exactly involve new languages (e.g. adding asynch to JavaScript, compiler work, building frameworks, MapReduce, etc...).

Now Apple is the mysterious company that doesn't interact with the research community.

It seems to me that Apple has had a rich history of interesting languages: Squeak, Dylan, Hypertalk, AppleScript and Swift. Those are just the ones I know of.

Apple post Steve Jobs' return has been more strategic and conservative in their PL investments. Hence why swift was kind of a surprise.

You forgot Mac Lisp and Object Pascal. :)

Pedantic note: it was called Macintosh Common Lisp (MCL), not to be confused with MacLisp, which predates both Apple and Common Lisp and is from MIT's Project MAC.

I confess I didn't bother to search for the real name, so I typed from heart.

As side note, here is a very interesting post about the system:

http://basalgangster.macgui.com/RetroMacComputing/The_Long_V...