Ever wonder what a jetpack is good for, besides fulfilling dreams and fighting Nazis? Well, Martin wants you to know there are, in fact, practical applications for its $86,000 personal propulsion system. According to the aviation company everyone from emergency responders to search and rescue teams to military personnel could find a place for the dual-engine craft in their arsenal of tools. Sure, we could see how their ability to get in an out where the size of a helicopter or plane might be prohibitive would prove handy, but their high