Well, there is also a JavaScript compiler in the works and a LLVM backend. Who cares? Adding more supported platforms makes the language and its libraries more

Well, there is also a JavaScript compiler in the works and a LLVM backend. Who cares? Adding more supported platforms makes the language and its libraries more stable and mature, because less things are taken for granted. Things in the Java standard library will work on .NET. Scala, too. If Scala uses .NET classes, this will also work. What's the problem?