title: Obtaining the user's username via Foursquare API
body: <p>I'm trying to obtain the user's username aka <a href="http://foursquare.com/USERNAME" rel="nofollow">http://foursquare.com/USERNAME</a> via the API.  There seems to be no support for it in the User JSON response nor can I seem to find it anywhere else in the docu. Shouldn't it be available via a User request???</p>