I saw this in an article the day they announced it and signed up!! You have to sign up on their web site (for anyone interested) and they can email you the coupon within two weeks, or you can print it now (like I would totally lose it!).
I am hoping to be able to go in December (please, lord, let me get a job!) for Amber's birthday because we haven't been in years and they've been asking a lot. It would be great for us to get away a little and give her a good b-day combined in one (I often use their b-days as excuses to go somewhere... Then I don't buy them gifts or give a party and use the money for a little getaway - which I think everyone benefits from!).