Twitter has now updated their API to allow threading, which means posting a reply to a tweet will now be linked correctly if you click on the "reply to" link. This could mean ST! would have a proper thread for Twitter updates and the possibility of a "View Conversation" link just like Pownce.
If this was implemented, it would be major awesomeness. Just as much if it was added to the iPhone interface.
Is there a way to show a feed from only one app at a time? I like keeping up to date, but showing all updates on one board gets overwhelming. And the other social groups I am with are yet to be incorporated into socialthing.