IntelliJ’s Idea 6.0 Beta is out and available free for evaluation. Most expected features were GWT support, TeamCity integration, UI designer enhancements and productivity/editing features. I have not tried (yet) UI and team integration but here are some things that cought my eye.
Built-in Code coverage support – Programmers love improving their code and what better way to do this than seeing coverage percentages of your tests right within the IDE. If you are using unit testing a lot, this gives you good insights about where to focus your tests.
Project-wide error-highlighting – This is something that Eclipse had for a long time, gives you good understanding of where you should go for errors without having to recompile.
There is one missing feature that Eclipse has: selecting a variable should highlight all usages in current block.