IPhone app store rankings are broken (intermittent bug)

I'm guessing that some of you may have noticed the broken app store rankings yesterday. It is broken again now. So apps that used to be in the top 100 are no longer in that list. Most of the apps that are now in the top 100 look like they got in there because of an app store bug. I don't know if this is related to the app store app count exceeding 100,000, but it does seem like a bug and the rankings don't seem correct