Princess R2D2 is one of the many cosplayers who turned out for a charity lightsaber relay race on the Pacific Coast Highway, but she is surely the cutest of them all. As the Mary Sue points out, she can smuggle her own plans to the rebellion.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.