Sun GlassFish Enterprise Server v3 Prelude is out now.
It base on Open Source GlassFish v3.
http:/www.sun.com/software/products/glassfishv3_prelude/index.xml
Let's download and write some cool rich internet applications running on GlassFish v3
https://glassfish.dev.java.net
Download from any these following links:
http://www.sun.com/software/products/glassfishv3_prelude/get.jsp
http://developers.sun.com/appserver/downloads/index.jsp
http://java.sun.com/javaee/downloads/index.jsp
https://glassfish.dev.java.net/public/downloadsindex.html
GlassFish Project - v3 Prelude
https://glassfish.dev.java.net/downloads/v3-prelude.html