(via Scoble) According to Scoble, Nick Bradbury will be providing a new version of FeedDemon that syncs with Bloglines.

The best part is items you read in FeedDemon don't show up as unread in Bloglines, and items you read through Bloglines don't show up in FeedDemon. In other words, feed state is synchronized so that you don't read the same item twice. This provides the best of both worlds, IMO - you get the easy synchronization between multiple systems found in a web-based app, with the rich UI of a Windows desktop app.
Very cool.