I didn't see those, thanks. That's good news. Hopefully host bindings land sooner now than they otherwise would have if tied to the GC proposal.
The wasm32-unknown-unknown LLVM backend target for Rust is also quite exciting. I say this after having just spent a minor eternity compiling the Emscripten toolchain. :)
I commented with a link elsewhere, but it seems that people have found a way around that!