@Jay Carlson: Jabber is not only a company. Jabber is the original name for the project that started it all (back in 1998), the name of our community, the name of the body (Jabber Software Foundation) that is the primary source of protocol additions (Jabber Enhancement Proposals).

We, the Jabber Community, donated the core protocols as XMPP to the IETF and worked with the XMPP Workgroup to make it a good foundation. Google seems to implement XMPP, along with several JEPs, thus calling it a Jabber implementation is in my opinion accurate.