(noted in the production release too).

Context: I live in my NewsGator Inbox | Search Folders | Unread Mail folder.  My goal every time I perform Update All Subscriptions is to scan through the resulting Unreads and (1) delete, (2) allow to be marked as read, or (3) mark for follow-up (and read).  Right now I have 958 items marked for follow-up and some uncounted quantity of ones marked as followed-up.

When I add a new subscription (e.g., http://feeds.feedburner.com/typepad/newsgator/inbox done just now), there are three peculiar behaviors:

1. There is a slow painful delay while the subscription sets up.

2. There is another slow painful delay while the new subscription is synchronized.

3. When I look in my Unread Mail, there will be lots of unread mail (368 items adding the subscription from above).  Some of these are items from the newly-subscribed feeds.  The remainder are previously-read items that are either marked for follow-up or checked-off as followed-up that, for some reason, have been marked as unread again.  This is some seemingly-random selection.  For example, in the just-completed addition, there were 8 posts from Nick Harris's blog and the rest were older posts from other feeds that had all been read before.

This makes me wary of adding new subscriptions while I am reading through some unread items and the slowness of the add subscriptions process for single feeds is the other discourager.

 - Dennis

1-2: All feeds are synchronized with NewsGator

2. Yes, I use the Outlook 2003 flaggings.  I view them in the For Follow Up Search Folder under the NewsGator Inbox PST.