After announcing the move last month, Twitter is almost ready to launch official support for retweets.

In the run-up to the launch of the revised API, Twitter has today assured developers that much of the work of deciding who is retweeting whom, and how that should be displayed, will be handled by Twitter. This will be a relief for third party developers who were worried about the amount of extra processing their Twitter apps may have to perform.

Twitter has also revealed how the new Retweet system is likely to appear to users within the service’s web interface. Here’s the mockup – notice the “Retweeted by” text, followed by the avatars of some of the users who have retweeted that tweet. What do you think? Messy? Confusing? Or maybe just right?

Screen shot 2009 09 18 at 22.48.09 What Twitters new Retweet system may well look like

[via TechCrunch]