I noticed yesterday that Twitter has officially launched the ability to update Facebook through your updates on Twitter. You just click on the Twitter app within Facebook, and you’ll see a link that says, “Want Twitter to update your Facebook status? Click here.” Click on that, the message will still be there (they say they’re working on that), but all your Twitter updates will now go to your Facebook status as well. Any Twitter replies (with @username in them) stay on Twitter and do not go to Facebook, resolving my previous concern.
UPDATE: Twitter doesn’t ignore just any post with an @username in it. The post has to start with @username for Twitter to ignore the post. I’d love to see it just ignore anything with @username, since Facebook friends won’t know who @username is anyway.