New language: Mirah
So, a new language which compiles to Java bytecode is demonstrated here: http://cogitations.arbia.co.uk/post/3984477935/fun-java-with-mirah
I liked the code samples. Syntax is better without those curly bracers invented in 70s. Template strings are also a big progress from the string concatenations or String.format with all those %f (another say hello to seventies).
But it will be hard to promote a new language having only syntax difference from Java. People need a lot from programming language today. What about IDE support, for example?