Feedburner went wrong

It’s the second day people report that Feedburner shows sometimes 400-500 less visitors than usual. I gathered so far almost 100 reports.
After Blogsearch that failed completely, at least the results integrated in WP platforms do, is it the turn of Feedburner? And will Twitter do likewise if they purchase it?

L.E.:Someone says they ckecked and the number of those dissapeared equals, in his case, the number equals those who use Google Reader.

Please leave a comment on how many of your usual readers dissapeared today, i am trying to gather statistics, thank you :)