I think Facebook being more exciting would actually hurt them, from what I have seen people generally have a lower opinion of Facebook because of new features,

I think Facebook being more exciting would actually hurt them, from what I have seen people generally have a lower opinion of Facebook because of new features, not because of lack of features. I think they have leant a bit on this front, the subscribe and the enhanced lists are there for those that want them but try to stay as far out of the way as possible for the general crowd who would dislike them being forced in as a key component. What I look forward to is a proper rollout of credits, I think at the moment Facebook apps appear similar to me to a lot of the free apps on the app store, of questionable quality and loaded with ads. Once there is an easier path for developers to monetise apps (and probably improvements in the process of making an app docs and stable api wise) I think we will see more quality, useful things popping up.