The NetBeans IDE 6.5 Beta release provides several new features and
enhancements, such as a new IDE-wide QuickSearch shortcut, more
user-friendly interface, and automatic Compile on Save. In addition
to full support of all Java editions (Java SE, Java EE, Java ME), the
NetBeans IDE is the ideal tool for software development with PHP,
C/C++, Groovy and Grails, Ruby and Rails, Ajax and JavaScript.
The 6.5 release also includes enhanced support for web frameworks
(Hibernate, Spring, JSF, JPA), the GlassFish application server, and
databases.
More here: http://www.netbeans.org/community/releases/65/
