This link was advertised all over PHL.

http://www.southwest.com/freeticket/

That page links to this credit card app page

http://www.firstusa.com/cgi-bin/webc...cont&mkid=6VTF

So an updated link. No expiration date is listed. It is still somewhat 'targetted' in the sense the standard offer is still only 8 credits (That's what was being offered in PIT) but anyone can get it if they have the right link...