[tomjen3]

If that is the level we are happy about you can already run with Kotlin today. Its not official Alphabet, but it is offical from the company that makes Android Studio and it is roughly to Java what Apples new language was to Objective-C.

Unfortunately that still means that there is no good way to write cross-platform mobile apps.

[Longhanks]

There is never a good way to write cross-platform apps. Cross-platform programs are always inferior to solutions specifically designed for a particular use case (e.g. touch input + mobile device, pen input + tablet device).

[tomjen3]

I agree there needs to be a platform specific input output layer, but assuming you are writing the same app on different devices there is always going to be a large core (essentially all the business logic, all models, all validation, all sync code) that is, or should be, the same on all platforms. It is that code I wanted to refer to.