FeedDemon 18.104.22.168 is now available from the FeedDemon Beta Site, and you'll definitely want to upgrade to it if you're running an earlier pre-release.
For one thing, it offers completely redesigned synching with Google Reader which corrects many of the issues customers have been reporting in our support forums. There are a number of other additions and improvements, too, including a new "quick tag" feature and support for WP.me in the short URL preview.
As mentioned in my previous post, NewsGator is shutting down their synchronization platform at the end of the month, so at startup FeedDemon now offers to convert you from NewsGator sync to Google Reader sync. The conversion process may take a few minutes while it adds your subscriptions to Google Reader and syncs your pre-existing flags, but once it's done FeedDemon will be synched with Google Reader.
As always, if you run into any problems with this build, please let me know by posting in the FeedDemon 3.0 Beta Forum, and be sure to include the build number (22.214.171.124) in your subject line.
BTW, there's also a new FeedDemon 3.0 Frequently Asked Questions page – it's pretty bare-bones at the moment, but I'll update it over time as I get more feedback about the new version.