I had a look too, and it seems it's an editor for XML + css-like + javascript... XML is used to describe the interface (there's no HTML), CSS is used to style t

I had a look too, and it seems it's an editor for XML + css-like + javascript... XML is used to describe the interface (there's no HTML), CSS is used to style the native components, and Javascript is used to script the whole thing. These are native components. They offer access to some of the hardware and OS through JS. Looks like "React Native" more than anything, some kind of "jQuery Native"... That's pretty interesting.