No, GlassFish v3 Prelude does not include a full EJB 3.0 implementation. You can download
a partial pre-release implementation of some EJB 3.1 features from the update center but the bulk of EJB 3.0(e.g. ejb-jar / .ear support) is not available on v3. If you need a full Java EE 5 implementation right now then Glassfish v2 is your best bet.
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