Got this from twitter front page today (click the image to embiggen) :
New! Retweet to share tweets (BETA)
Hi there, you're part of a beta group receiving this feature, which means you may start seeing retweets in a new way. People who don't have this yet will see your retweets prefaced by "RT".
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(looks at the red sentence) I feels so special. *twee*
So if your tweeter seems a bit off today, this is probably why. :)
