Everything about Facebook is changing. The things are not as they used to be. Where are all the times of Farmville and online poker which sucks. However, some things changed for the better. For example, Facebook invites are not problem as they used to be.
If you remember on those Farmville days, you could have billions of invites every day. With the time this number thinned. And soon it will faint even more. Facebook will forbid invitations from games and applications possibility to invite friends in next Facebook SDF for developers.
Also, there will be no like for third party pages. Which is kind of odd. But I guess it is another ad boosting solution.