Eclipse Juno released
eclipse.org
eclipse.org
I just love the combination of the static typing and huge class library of Java and the amazing tooling that Eclipse delivers. I know, I know, oh, the verbosity. JDK8's lambdas look quite sweet, and should help a lot with that. http://openjdk.java.net/projects/lambda/
To be fair, it was (is?) the most lightweight free Java IDE around, compared to JBuilder and NetBeans.
Being able to use Eclipse for complex multi-language projects and have it offer intelligent IDE functionality for all of them is amazing. And that's just the tip of the iceberg of the Eclipse ecosystem.
About the only thing that I thought was better in Eclipse last I used it was C/C++. CDT is great in comparison. But I'd rather use Visual Studio if I need to write C++.
Emacs is now my editor of choice, teaching me Emacs-Lisp to customize it was even quite enlightening. My only regret is having spent 10 years in "modern" IDEs while Emacs was there all along to double my productivity!
So far every convert at work loves it :)
For C++, I think the CDT for Eclipse gets all the value add features right (ie. Implement Method, New Class and Outline. Although Visual Studio used to be my primary IDE, I now have a hard time navigating it and I feel like I'm missing all my favourite features. I guess it's just what we're used to.
My only complaint is that it didn't support SaSS hi-lighting so when I was learning web design I'd get funky half CSS hi-lighting.