Direct messages in the inbox tab always show as ‘unread’ and there doesn’t seem to be a way to clear that. They also don’t show the name of the other person you’re messaging (seems to show my id instead). It would also be great to link to their profile so you can find their posts / comments easily.
Dang, I though I caught it all in last nights update. I just fixed those issues this morning, and I’ll include that in the next update (probably tomorrow).