Ohhh! I've seen that before. It's the resurrection plant. I saw it sold in Chase Pitkin before. Rose of Jeriko is how I remember it, or however you spell it. I've looked it up on gardenweb.com and it's either Selagenlla lepidophylla or Anastatica hierochuntica as a member says in a post. I think it's a really awesome plant.
Wikipedia article on it