Here's a simple Plunkr that animates the insertion of items in a list. This uses -webkit-transform to scale insertions from scale(0) to scale(1). Switching the ng-animate="'insert'" to ng-animate="'fader'" will use Javascript animation to insert the items.
But: I'd like to be able to use CSS keyframe animation here instead. The last entry in the list is hard-coded and uses the "float-enter-start" class. I cannot seem to make ng-animate apply this class correctly. It seems like setting ng-animate="''float" should work, but it doesn't. What am I missing?