It would appear as if both www and non-www versions of websites are no longer being treated by Google as separate pages, at least where Page Rank is concerned.

We know that the visible PR in the tool bars is only a loose indication of a site’s actual PR, but it can still be frustrating when you see a low PR for the non-www version, and a higher PR for domains with the www. Recently we have noticed that the PR displayed is now the same for both versions.