> I do find it disappointing that some (b)leading edge JVM and Java features don't support Windows yet

Seems understandable though. Java is primarily a tool for heavyweight Unix servers, after all. (This is of course an empirical claim, and I have no source, but I'd be surprised if I turn out to be mistaken.)

Makes good sense to go with the strategy of building an industry-strength technology before investing the time to handle Windows.