Yoga continues to grow in popularity as more people discover the benefits of the greater flexibility and strength it can provide. What's not quite as popular is carrying a yoga mat from class to class, as they tend to unroll at the most inopportune times. Backslash Fit has come up with a solution by creating a "smart" yoga mat. No, it's not connected to the internet. But it does automatically roll itself up after you're finished and stay its compact position until you're ready to use it again.