Interesting. But unless there is a way to deploy the application on the phone directly ... What I could imaging is, on Android, being able to code on the phone

Interesting. But unless there is a way to deploy the application on the phone directly ... What I could imaging is, on Android, being able to code on the phone, preview the application in the app directly, but compile on a compilation server that will give a link to a build (since APK can be downloaded and installed locally ). I don't see however any advantage with yet another scripting language, when Javascript and Cordova can be used to achieve that task.