I'm one of the persons waiting for a stable tokio so badly. I have many use cases for this in my Rust projects that are either currently doing async io so-so or doing stuff like firing http requests in sync using the tools available. The situation in hyper land is not very cool at the moment, master being async but requiring you to write the callbacks, stable using too old openssl and the tokio branch not compiling.

With tokio I could unify my code base and make the code simpler and easier to follow.