[geofft]

I think that's because there weren't many Swift users who weren't already on board with the Apple hype train, for obvious reasons. I don't do iOS dev personally, so it's never seemed worth my time to learn, but it seemed like a cool language.

(By the way, I have done iOS dev in the past, and Objective-C has grown a lot under Apple's recent guidance from where it was 20 years ago. Again, if there were a free-software runtime supporting modern Objective-C -- last I checked, GNUstep was a bit out-of-date -- I might have considered it as an option for development on non-Apple platforms.)