Cool! I'm the developer of AnGoIde (the Go IDE that runs right on your Android device) and actually one of the future features was an option to generate APKs for custom CLI Go apps on Android; e.g., with a bootstrap GUI that just executes a Go binary. One challenge is supporting both ARM (different versions) and the x86 (gaining popularity) architectures, so I'm interested to see how the official tools will accommodate that going forward.