From: Ronaldo Rigoni ... <rrigoni_at_gmail.com>
Date: Tue, 28 Apr 2009 15:29:14 -0300

Because GlassFish v3 does't support EJB3, JPA, Application Client Container,
JMS and more.
V2 have more features then version V3?

https://glassfish.dev.java.net/public/comparing_v2_and_v3.html

-- 
[]'s,
Ronaldo Rigoni
Desenvolvedor JEE
Ministério da Educação -  CESPE