Please for the love of all things holy please stop saying Swift would be great for Android or that Google is porting Go to Android. As an Android developer for the past four years I can assure you that there is zero evidence that Google is moving the Android FRAMEWORK to Go. There aren't even any plans to support lambdas and Java 8. Also, pretty much everyone on the bleeding edge of Android is planning on moving to Kotlin. It has even more higher level and functional abstractions than Swift or Go, full interoperability with Java (even in the same file), and almost no performance hit.