I am an American currently living in Tokyo on exoat assignment for 3 years so our primary mode of transportation is by stroller. While pushing my two kids up a incredibly steep hill, I started to wonder if there was a motorized stroller out there -something similar to how a walk behind lawnmower works. People in Tokyo have motorized bicycles that you can engage when needed so why not for a stroller? Please invent this and make city moms all over the world happy!