No, GlassFish is not an IDE, but yes GlassFish v2 has an update center (start it using the binary in
While it only had a few updates to GlassFish and additional documentation for a while, with the release of GlassFish v2, we’re starting to see a whole set of additional features available through this delivery mechanism:
• Jersey (JAX-RS implementation)
• JRubyOnRails (using Goldspike)
• Phobos for server-side scripting with Rhino 1.6R7 (includes E4X)
• The Roller Blogging Server (the software powering blogs.sun.com). Try this page (short slideshow of screen captures) to get a feel for how easy the process has become, from install to first blog post. Update: Dave has some additional remarks.
Make sure you also check out how to setup your own update center and write your own updates.