Mashable and other sources jumped the gun: Feedburner, recently bought by Google, will open a few premium services to their free clients.
“TotalStats and MyBrand, both previously for-pay services, are now being offered at no charge. And with FeedBurner Stats PRO, you can see the number of people that have clicked on the individual content items in your feed, and also obtain the context of your Reach, which estimates the number of subscribers that interacted with your feed content, on a daily basis.