I lost PR on both of my sites. At the same time I gained *huge* serp rankings in both Google and Yahoo, so whatever, I'm not complaining =o
I tend to believe that a lot of people lost PR because of the billion page sub-domain spamming incident and all of the copycats sub-domain spammers. Maybe next go around Google will have cleaned out all of those bogus pages and thus PR will not be so dilluted.
The better way to do it would be 'how much PR did you gain / lose'. As for me, PR4, not bad considering the domain hasn't even existed for 50 days yet
I've gone from PR0 to PR3 in two months which isn't bad considering my site has gone through like 3 re-designs How can I check the PR of my internal pages?