Netbeans 6.5 Beta

Yesterday a new version of the popular IDE - Netbeans. Briefly about the main thing, what's new in this thread:

1) PHP support
2) Groovy / Grails
3) Ruby Tests
4) Mercurial
5) javascript / ajax debug via firefox and ie browsers
And also much more, you can read more here.
PS - even though it is beta, but as practice has shown, it works stably