I discussed that subject a little on the implementation discussions forum, but I guess it's more a design issue : after having read the 1.3.1 specifications, I couldn't find a clear definition of what an <animation> was, except a group of channels.
More precisely, it says "Animation describes the transformation of an object or value over time.".
Does that mean an animation should be attached to a node (the "object") ?
Therefore the target node of an animation would be an attribute of the animation element. But then, what if we wanted to animate instances instead of nodes?
I have no idea of what the 1.4 specs will add about that as they don't seem to be available before November 4th, but any clue would be helpful even for 1.3 support.