[JDEV] "fictional" jabber:iq:info namespace?

[Jens Alfke]

After sending my previous question about how to retrieve a user's name, 
I found an example in the documentation of the <iq> element that does 
exactly this, using a jabber:iq:info namespace:

http://docs.jabber.org/proto/html/iq.html

However, it says that "The namespaces used in the following examples are 
fictional" and, sure enough, I can't find the jabber:iq:info namespace 
documented in the JPG or JPO. Which is odd, because I sure can't find 
any real namespace that does what this fictional one would do...

Is getting the vCard my only option? Are the existing clients all good 
about setting a vCard on the server, or does one automatically get 
created when you register your account?

--Jens