I know it is Ruby, but it is pretty neat :)
http://golang.org/
Check out the Tech Talk on Go, since it is really neat to Watch Rob
Pike (of Unix, Plan9, Inferno fame..) Talking about it.
Pretty neat stuff in a nerdy way.
Oh and mark, Sorry it isn't really Object Oriented, you can have types
and methods make it feel OO, but no Type Hierarchy..
-Patrick