I've never seen these before, but I love the idea! I have a feeling I'll be getting one of these very soon. Especially if I end up buying a large Carly which I really want.
Is that the black with white dots? I love it! I have the brown with light blue dots and I use it in every bag I carry. I also have the pink "garden circles" (I think that's what it was called) but it is sitting somewhere because I liked the other pattern better. I wish Purseket.com would get some new fabrics.