Here's an interview done on Japanese company, Noitom, that makes the MySwing motion capture golf system.
Unlike other motion capture systems, Noitom's product only takes minutes to assemble and only weighs a few grams. Most systems take at least an hour to assemble and weigh about 12 pounds.
Noitom's system is wireless, so it can be used both indoors and outdoors. It also can hook up into a tablet or PC.