So I guess the secret is out! Silhouette has already made available the new stitching templates. For those of you who haven't seen it, here is the test piece I did when I was designing them.
Your Silhouette machine or craft cutter "punches" holes (cuts circles) for you to then stitch thread, yarn or floss through. This makes adding a touch of homemade to any card or layout easy! No more punching paper, it's all done for you.