Andy Beard has been tracking the Google PageRank changes like a hawk and he reported PageRank Zeros to many sites. There are also many people reporting PageRank Zeros at DigitalPoint Forums.
Those reporting that they have a PageRank of zero are also reporting that their rankings and traffic from Google are the same. I have seen some sites with a PR0 that do not sell links, so I am not sure if it is directly related to link selling or buying or just a PR bug.
Forum discussion at DigitalPoint Forums.
