Well, we have lastupdated then that takes the place of
Last Modified. And while a seperate table for notes is
not required (could be a column in the root node table),
I suspect most root nodes will go un-updated. The purpose
is two fold.
To allow updates to be seen by the most people in
the manner which they are accustomed (Newest Nodes).
Thereby removing any excuse for posting a new root
node as an update.