Twitter has updated its iOS and Mac apps, adding DM status sync and a new Connect timeline, respectively.
On the iOS side of things, the new DM status sync will mark a direct message that you've read as such on all of your devices. Nice! As for the Mac, the new Connect timeline will let you browse your own tweets that have been re-tweeted or favorited. It also keeps track of new followers and plays well with DM sync.
That's good news for Twitter fans. Update, tweet and enjoy.