There are many languages for backends and tons of libraries. But there is hardly any substitute of Java in Android(if you don't consider JS solving every problem in this planet). If JetBrains only concentrate on building an ecosystem for android, it can become "the real Swift for android".
I built a dummy app for android in Kotlin. It was great. The same thing I tried in Scala(it didn't go very well).
There are many languages for backends and tons of libraries. But there is hardly any substitute of Java in Android(if you don't consider JS solving every problem in this planet). If JetBrains only concentrate on building an ecosystem for android, it can become "the real Swift for android".
I built a dummy app for android in Kotlin. It was great. The same thing I tried in Scala(it didn't go very well).