The VMTN blog is reporting that RedHat has released a few more virtual appliances today, and they are set to go.
From the blog:
"check out the new RedHat Enterprise Linux Version 4 Update 4 and the Red Hat Application Stack, featuring Red Hat Enterprise Linux, JBoss Application Server with Tomcat, JBoss Hibernate, and a choice of open source databases: MySQL or PostgreSQL, and Apache Web Server."