A recent favorable review of RSS Bandit on About.com pointed out a missing feature that I've seen more and more of our users asking for. The bottom line of the review reads
RSS Bandit is a nice and very capable feed reader that lets you browse news in an organized fashion. Its flexibility, virtual folders and synchronization abilities are great, but it would be even greater if it integrated with Bloglines and NewsGator Online, too.
Although we have various options for using RSS Bandit from multiple computers, many users find them inaccessible because they don't have access to an FTP server or a WebDAV server. Also in certain cases, one may not want to install RSS Bandit on a machine that was being used temporarily but instead use a Web application which could then be synchronized with RSS Bandit later on.
The main reason I didn't include syncing to Bloglines in the Wolverine release is that the Bloglines sync API is not very rich. RSS Bandit users can flag posts, delete them, mark read posts as unread and so on. None of this functionality is supported by the Bloglines sync API. Similarly users cannot add or delete feeds using the Bloglines sync API. This means that there really isn't any way I could fully synchronize the state of an RSS Bandit instance with a person's Bloglines subscriptions. It seems the API was designed with the assumption that the user would be using Bloglines as their primary RSS reader not the other way around.
The way FeedDemon got around this problem was to create a separate channel group for Bloglines subscriptions which has limited functionality compared to other channel groups but is synchronized with the user's Bloglines subscriptions. This looks like the only reasonable approach as opposed to waiting indefinitely for the Bloglines sync API to develop more functionality.
The above argument also applies to syncing with the Newsgator Online service.
In the Nightcrawler release I'll ensure that we provide syncing to both Bloglines and Newsgator Online. However this will be via synchronized channel groups which won't be compatible with the existing synchronization mechanisms that use FTP and WebDAV today.