Edit: I definitely spoke too soon. The stats are still borked.
Like many we have seen a large drop in our RSS subscriber count over the last week as Google migrates FeedBurner. Google has been silent on this issue, not even acknowledging its existence on their Known Issues and Workarounds Page. Today, the numbers were still lower, but at least approaching normal. However the FeedCount chicklet on our site still showed a lower than normal number that now no longer matches the FeedBurner dashboard. You can fix this easily by updating the link in you FeedCounter.
For us, this meant changing this: http://feeds.feedburner.com/~fc/ElumenotionBlogPosts?bg=950407&fg=ffffff&anim=0
Google will surely have this all worked out by the time the migrations are over, but so far they aren’t talking.