Microblogging with RSS

A good example of an "easy" win would be if ThoughtStreams implemented sending and receiving webmentions.

• Perform webmention endpoint discovery and sending on all outgoing links in new cards
• Receive webmentions for streams and individual cards -- display them in appropriate places, and optionally notify the user.
• Ideally allow users to specify a u-in-reply-to URL.

If this were in place, suddenly I'd be able to carry out a exchange with other TS users, or between my TS and any webmention-enabled blog, or between TS and any Twitter account (if the Twitter user is signed up at brid.gy).