After a couple of days vacation, the FeedBurner feeds are back.
I bought the domain forwarding option from WordPress.com (http://crazycanuck.org/), and then waited. I reactivated the feed at http://feeds.feedburner.com/crazycanuck this morning, and you can start using that again.
Rick Klau from FeedBurner left a comment last night, which prompted me to try again.
Hopefully things will remain stable now.