Disneyland have extended the 2fer ticket promotion to run for another month. It really seems to be getting the guests into DCA, which obviously is a very good thing for Disney. Also, the 2 days for the price of 1 ParkHopper has been extended.
Your first day at the park must now be used on or before May 22nd, 2008. You then have 30 days from your first visit to go to DCA.
Rules still state that you must have proof of living in Southern California or Baja California.