yes its good it has a pr4 although from what i have read – google will of alreadt reset it to zero which will be shown in the next toolbar update.
As google will see it is an expiring domain and also see the change of whois data – then they will rank it as a new site/domain
This is according to the experts at seo chat which most there seem to agree on.
As far as what to do with the domain, hmmmm try and sell to google LOL or a site covering and reviewing all the search engines and add some seo tools and some adsense/YPN.
OR do what i do mostly – park them to death :banger: while promising to your self that one day you will develop all the parked sites