That looks interesting, but I'm talking about something more like GTK, ie something that looks somewhat native and is easily portable across OSes.
This comes up in /r/rust periodically, and IIRC the answer is still pretty much "no". It is getting better, though, slowly. I'm on my phone and too lazy to find a link for you, but search /r/rust for discussions about GUI libraries/frameworks.
Integration with GTK is getting easier and nicer, but there's more work to do.
Yeah but you are much more productive using them from a higher level language binding.
E.G: QT used from Python with PyQT.
Before I started programming in Rust I had similar concerns when I saw people pushing rust as backend language choice. However having written a non significant amount of rust it does really well at feeling a lot like ruby/python while still achieving high performance and low level access.