Daily Kos diarist svotaw1992 had some time, a spreadsheet, and a little bit of curiosity -- and discovered that Ohio's official results show Clinton winning a narrower victory than originally. Apparently, now that Ohio has finally finished counting all of the roughly one hundred thousand provisional ballots, Clinton's final margin of victory was 8.7%, not the double-digit win reported on election night.
Now at this point, it doesn't make any difference as far as the nomination goes, but for two months we've suffered through discussion after discussion about how Clinton destroyed Obama in Ohio. Now, all that turns out to have been based on numbers that exaggerated the size of her win. Moreover, since exit poll data is based in part on actual vote results, the exit poll data also exaggerated the size of her win.
Here are the final totals (svotaw1992 has the gap at 8.8% which is correct if you exclude the Edwards votes, which I include to get the 8.7% margin).
Here's what other sites were (and probably still are) reporting.
Again, I'm not up in arms about this, and certainly don't take anything away from Clinton for having won, but it's something people should be aware of when thinking about the contours of this campaign.
Update: After posting this, it occurs to me that these new numbers also put Obama even further ahead in the "popular vote" -- adding another 26,022 votes to his lead over Clinton. Of course, the popular vote is a thoroughly flawed metric, but these numbers make it even harder for Clinton to reach Obama.