Would someone be willing to post some of the themes here into a responsive design? Meaning that the site will collapse down for smartphones and tablets with single columns, sidebar collapsable, etc. I don't know much about how to do this, best example I can give is my art site (a worldpress site) is responsive. Look at it by shrinking the browser window and you will see how it re-formats itself to fit the window.
http://www.sonyaireland.com