[Zope-dev] Prevayler and "Object Prevalence"

Any ZODB developers read this article at /. and the accompanying one at developerWorks? Would anyone care to comment about the relevance/comparisons of "prevalence" to the concepts of persistence used in ZODB and/or ZEO? http://developers.slashdot.org/article.pl?sid=03/03/03/1220222&mode=nested&t... Just looking for some info. Thanks in advance, JZ