The Wii Fit's slab of a peripheral is called a Balance Board for good reason: it's fine if a little yoga and pilates action is all you need to keep in shape, but, sturdy as it is, jumping up and down is liable to form cracks before toned thighs. If you need some high impact aerobics to be rid of that spare tire you'll have to go custom, like the SwiitBoard from a cardio-loving Wii aficionado called frits. It's just a durable wooden plank propped up by foam blocks on either end and a Wiimote zip tied to the front. The magic happens in the software, converting the up/down impacts of jogging in place into forward motion, with left or ri
