[Uri-review] XMPP jabber: URI scheme not registered?

[Graham Klyne <[e-mail]>]

I've just been digging around the XMPP specs, and I notive they make reference 
to required namespaces of the form "jabber:client" and "jabber:server" (cf. 
http://tools.ietf.org/html/rfc3920#section-11.2, esp sect 11.2.2).

Examples in sections 8 and 9 of that spec reinforce the indication that jabber: 
is being used as a URI scheme (rather than a namespace prefix).

But looking at http://www.iana.org/assignments/uri-schemes.html I'm not seeing 
any mention of jabber:.

Assuming I'm reading this right... it's probably unfortunate that that this use 
of jabber: has come about (like dav: before it?) but I guess it's now entrenched 
and should at least be registered?

#g
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