> I've finally had a chance to take a good look at this. This looks fine for
> the use case it covers, that is, properties of objects which observe some
> kind of event listener design (don't know the details). What about
> properties of properties of objects---like ${obj.prop.subprop}? If the
> "obj.prop" value changes, do the binding listeners get notified?
No, because those listeners have indicated that the property they care about is
"subprop". They don't necessarily know or care that "prop" is referred to by
another object ("obj", in this case).
