Migration of FeedBurner and Google feeds is to occur in the very near future. This is likely a very important step in progression of the RSS standard. Many large publishers used the FeedBurner platform to publish their RSS feeds. Google bought FeedBurner quite some time ago. I've been informed that my FeedBurner account will be transferred to my Google account. Not sure how they associated those two accounts, but they did. Let's track this closely.