Sun's posted the first official feature complete beta of NetBeans 6.0, its pure Java IDE for various platforms. I spent a little time playing with it, and it's definitely getting there. It's quite clean, overall, and serious competition for Eclipse, at least at the base level. I can't quite find my way around it as easily as in Eclipse--I never did figure out how to make one project reference another--but that's just a function of my years of experience with Eclipse. For someone starting from scratch, I have little doubt NetBeans would be a much easier product to use. The biggest flaw I noted was that some of the menu items like "Options" bring up dialog boxes but don't end in .... Otherwise, I couldn't find any problems.