Maxwell Smart had one, Shaq had one, so why can't we have one? We can. What is it? A shoe phone. What started out as just a prop for a church camp drama presentation that had a "Get Smart" theme, has mushroomed into a popular "make it yourself" project for DIY geeks, since 32 year old Australian inventor, Paul Gardner-Stephen posted instructions on how to make it online. In a world filled with IPhones ,blackberries and blue tooth technology, a primitive novelty like Maxwell Smart's shoe phone may seem out of place, but the inventor emphasizes that it has it's practical applications too, like helping the elderly.Gardner-Stephen says the shoes could hold sensors to detect if a wearer falls, making them particularly useful in nursing homes and aging-care facilities.