Years ago, XtremeMac was as well-known for its intriguing industrial designs as anything else, and the new Soma Stand ($100) is a welcome return to form -- one of the only truly novel speaker designs we've seen in a long time. While capable of folding flat-ish for storage, Soma opens into a rounded pyramid shape with a pop-out front dock and rear-mounted controls, housing left- and right-firing speakers within a black and gray plastic enclosure. Six…