> I wonder what this means in the long run for the open development of this
> platform?
Not a darn thing, unless Cisco screws around and makes an incompatible
version of a jabber server and client that doesn't play according to
the protocol. Microsoft Java, anybody?
We'll see how long this list stays true:
http://www.jabber.com/CE/JabberXCPInteroperabilityOptions
Cisco didn't buy the protocol, and literally dozens of open-source
projects that use the protocol in various ways are not affected by
this. They bought one commercial implementation of a Jabber server
(arguably multiple implementations).