First of all, yes, everyone on Twitter now should have access to the new Retweet functionality. Currently, only Twitter.com and a handful of clients support the new mechanism. But did you know that you can also trigger the new Retweets via SMS?
As the Twitter mobile account noted earlier tonight, if you simply send “RT USERNAME” to 40404 (at least in the U.S.) it will automatically retweet the last tweet of whatever username you entered has sent. And yes, it will be a new-style Retweet.
If you love the new Retweets, that’s a great feature. If you hate them, well, then, you’ll hate this too. For more on that, see here.
A couple other things worth noting about Retweet now that it’s live for everyone:
1) You can stop seeing the new Retweets from any user simply by clicking on their profile and making sure the rotating arrow badge under their name is not green.
2) New style Retweets do not show up in your @replies section. To see them, you have to go into the new Retweets section and click on the “Your tweets, retweeted” area.