Openfire Enterprise is becoming Open Source
The most complete Java-based XMPP server
The enterprise edition of the popular Java-based XMPP server Openfire is becoming Open Source. This also includes the Flex-based IM client Sparkweb.
As Matt points out the the clustering functionality in the enterprise edition will not be made Open Source: "Part of the reason for this is that it uses a third-party commercial library for clustering."
Nevertheless, due to the moduluar design of Openfire, the use of Coherence can quite easily be substituted by a free alternative like Terracotta.
This is really great news. Thanks to Jive for their commitment to the community.
Update 2008-04-07
Dombiak Gaston has followed up with a roadmap describing the two phases of the transition. The first phase with the majority of features is scheduled be finished by April, 27th.