the details have been listed in this forum already - basically they gave us 4 special cards (we had 4 people in our group - they will give you up to 6) Each card can be put into the fastpass machine and comes out with a fastpass that is good to use right away. You can use it even when the regular fastpasses are all gone for the day. Each park has a list of the rides you can use it for. You can use it three times for the list of "donald rides" and three times for the list of "daisy rides" basically you can use it once for each e ticket ride or for your favourites and not bother with others. Each member of the party can use theirs as they see fit. You still can get regular fastpasses as well.
At MK we did BTMR, SM , Buzz, Winnie the Pooh, Peter Pan, and Philharmagic.
At DHS we did RNR, ToT, Little Mermaid, TSM, Star Tours and stunt show