I've really wanted a way to have prototype GUIs be cross platform deployable. Probably there would be demand given the popularity of prototyping tools like zeplin.io, www.invisionapp.com, https://www.flinto.com/, http://framerjs.com, http://giveabrief.com/ and others.
The code generation is tailored for each platform, so there's no common framework or other library dependencies in the generated project files. Instead the generated code uses the native stuff directly. On iOS that means you get UIViewControllers, UINavigationControllers, UIPageControls etc. Likewise on Android the native equivalents.