That's a pretty broad question, but overall I favor deeper integration with operating system and platform capabilities. Some people see GUI as something to be b

That's a pretty broad question, but overall I favor deeper integration with operating system and platform capabilities. Some people see GUI as something to be built over an abstraction layer consisting of delivery of mouse and keyboard events, plus a fast pipeline to render pixels. I think that misses some opportunities. This is one reason I'm really enjoying Rust. When it comes time to do some platform integration, you just haul out the unsafe keyword and write it, nothing in your way. By contrast, when I was working on Android and had to do a lot of JNI, it was painful.