The GlassFish community is building free, open source, production-quality, enterprise software. The main deliverables is a production-quality Application Server that is also the Java EE 5 Reference
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Implementation.
There are 3 ongoing releases of the GlassFish AppServer. GlassFish v1 is in production. GlassFish v2 adds clustering, failover, features and performance and is close to beta3. GlassFish v3 adds a modular architecture with a very small kernel and is in early technology preview.
TheAquarium (http://blogs.sun.com/theaquarium) reports on activity in the community. [Less]