Most of you are still not fully informed on fastpass+ so I thought I would post an information post.
This is how fastpass+ works right now and could change at anytime. Remember, it is still in the testing phase.
Disney resort guests can pre-select their fastpasses up to 60 days in advance. Everyone else makes the selections day off at the park which you want fastpasses. Everyone gets three fastpasses a day. If you use fastpasses at one park (i.e. Magic Kingdom), you can't use them at any other park that same day. You still need everyone's park tickets to get the fastpasses. So mom can't choose fastpasses for herself then expect everyone else to get in with her. You still have times to show up to the attractions to use the fastpass. The sooner you get to the park, the better fastpass times you'll get and the more attraction availability. Lines for the kiosks may look long but most of them are under 10 minutes. Most families bring everyone with them to pick fastpasses and that makes it look longer then it is. There could be 30 people in line but it could only be five families. There have been instances of where there is a group of 8 or more but all eight of them have to be in line. When you get in line for the kiosk, have in mind what rides you want to choose and have your park tickets out by the time you get to the front of the line. It also helps, when you have all the cards labeled with names on the back. The cards say please print name and it really means to have it printed. You can modify fastpasses as long as they haven't been used.
I believe that is all the information that is asked on a daily basis. If you have more questions or need some clarification, feel free to ask and I can answer them to the best of my knowledge.