Seems like the JNDI browser is not in the v3 release and is scheduled for v3.1.
As much as I like and evangelise Glassfish, releasing it without such functionality (which I think is invaluable for problem solving and seeing what is actually being deployed) seems like a half-arsed release.
[Message sent by forum member 'seclarke' (sean.clarke_at_sec-consulting.co.uk)]
http://forums.java.net/jive/thread.jspa?messageID=377560