Both say that they don't twitter so perhaps Summit put out their Tweet.
Rob was the first star to post on Summit Entertainment's official
Twilight Twitter account, typing a message of appreciate to fans around the nation:
"Thank you for making New Moon #1. It's very exciting to be a part of something embraced by so many people. I hope you are looking forward to ECLIPSE as much as I am."
Stewart then followed her rumored boyfriend's lead, making consecutive postings that read:
"You all have proven you're the most amazing fans in the world once again."
"Yes, I twittered. Or twitted..tweeted? I dunno, but thank you sooo much anyway..!"
This sounds like Rob (dunno) not Kristen...She usually drops f bombs