This is echoing our experience. I think there's going to be some serve overuse of UIDynamics but hopefully that will eventually be refined in.
I'm not saying it won't be used wrongly, just look at [Write](https://itunes.apple.com/us/app/write-for-dropbox-beautiful/...) for an example of a place where this'll be overdone to shit. But many of the UX people who intend to use dynamics stuff have probably had these ideas in their head or sketched out for quite a while.