Hold on a second there... I am primarily a Java developer, although I dabble in some functional languages like Erlang, and usually mix some Lua in here and there). I've followed Kotlin for a long time waiting for a clear sign that Kotlin is worth learning after being burned by Scala. With co-routines I feel it's worth it, although I would desperately love being able to compile to native! That for me would be a killer feature. Currently I am learning Rust after dismissing Go for the task (love the simple concurrency, don't like the basicness of the language), and Swift (what a mess, I prefer ObjC!). Although I'll probably keep with Rust anyway because it's too impressive to not, the non-GC nature of Rust isn't important to my use-case, I basically just want a native Java. A native Kotlin would be perfect, as long as I can get high quality Gnome bindings. In fact, the main thing I would want out of a native Kotlin is around the native-code-interopt, and in my case that would be the libraries needed for native Gnome desktop application development.