As GigaOm
notes today, Cisco is
buying instant messaging service Jabber for an undisclosed amount. Many of the news stories on this are missing the open source connection--or the almost open source connection. As Stacey notes in the GigaOm story, Jabber is based on Extensible Messaging and Presence Protocol (XMPP), the same protocol being used by several open-source IM implementations. Matt Asay also does a nice job of
clarifying that Jabber uses open technologies, but has never been 100 percent open source.
Find more at GigaOm.