They no longer need the exclusive since PadMapper's workaround has been effectively killed by the changes Craigslist made to its robots.txt, Google is no longer allowed to index apartments thus PadMapper can not scrape the Google cache.
$ wget -q -O- --save-headers http://www.craigslist.org/robots.txt | fgrep Last-Modified
Last-Modified: Fri, 04 Nov 2011 18:13:24 GMT