FeedBurner Konfabulator Widget
Update: I've just added a quick addition. There's now a new icon next to the change id (aka search) icon. A click of the arrow icon should send you to the FeedBurner home page. Also, I've created a permanent page for the widget. All updates will be available there.
On a request, I put together a really quick Konfabulator widget that displays your circulation number. This is v0.1 material, that's for sure. I heavily hacked the Stock Ticker widget that comes with Konfabulator just to get this together quickly. By default it loads my info but you can easily change that via the context menu or via the search icon in the top right.
Some quick notes, if it can't find the feed or hasn't loaded it yet, it'll simply display an asterisk (*). If it can't connect to the network, it should show two hyphens (--). Yeah, it ain't pretty.