I think Rust is very interesting and quite exciting, but it's hard to evaluate in relation to other languages (for me, at least) because it is really really young. I've never seen a useful program written in Rust. All of the features sound really good in theory, but I've never used a similar language, so I don't have a sense for how these features work in practice.

Actually, anybody have a link to some non-trivial Rust code?