the nick 'lautre' is registered; but it probably should not be, if you did not enter a password - perhaps this is a bug or perhaps someone else had already registered that same nick
http://ns.ring.cx/name/lautre as a side note: i notice that the 'lautre' nick has associated fields for 'publickey' and 'signature', but my nick does not have those - what is the purpose of 'publickey' and 'signature'? - are they for a new feature that was unavailable when i registered, or something specific to the android platform?