Rust 0.1: first alpha version of the Rust programming language
mail.mozilla.org
mail.mozilla.org
They recently added a tutorial: http://doc.rust-lang.org/doc/tutorial.html
Of specific interest to language nerds may be the recent addition of interfaces (http://doc.rust-lang.org/doc/tutorial.html#interfaces), which cover some of the same ground as both C++ classes and inheritance as well as Haskell's typeclasses.
But lexically scoped, thankfully.
http://github.com/mozilla/rust/
For anyone who's been on the fence while waiting for the language to solidify, this release is a great opportunity to jump in and contribute. It looks to be mainly optimization, library development, documentation, and tooling from this point forward.