[smcj]

The state of IDE support has pretty much changed since a year ago.

IntelliJ pretty much rocks, Eclipse is done by the Scala team itself (no idea about Netbeans, though). While Scala IDEs haven't reached the level of maturity or the wealth of features of Java IDEs, they have useful features even Java IDEs lack.

I guess the .NET port is mainly for people wanting to keep writing Scala regardless if they are targeting the JVM, the CLR, browsers with JavaScript/GWT or the LLVM.