Als Antwort auf Laurent Eschenauer.

That's exactly what I have planned :)

Aggregating comments is not that big of a problem and should be done with some little changes on the default pingback functionality of WordPress. The bigger problem should be the reverse way, because comments have no "real" urls in WordPress. Perhaps we could add fragment support like superfeedr does: http://blog.superfeedr.com/fragment-subscription/ but single views for comments shouldn't be a problem either.