On the AOLserver list, in the "Scaling at the high end" thread, Nathan
Folkman
just announced
that AOL is preparing its nsdci "Digital City Module" for Open Source
release. Among other things, it includes their network "NV" code.
I'd forgotten all about this, but apparently AOL really did open
source their
nsdci
Digital City Infrastructure codebase some time ago, on Google Code.