While location sharing is nothing new, startup Glympse has some key differentiators including a focus on real-time tracking and ephemeral sharing. Glympse lets you temporarily share your location w/ anyone by simply sending a link, accessible for a set period of time, from minutes to hours. The service can continually track your location if you choose to enable that feature, including traveling speed and arrival estimates. Even more interesting is their partnerships with Ford, Verizon, Gogo and more to enable sharing in-car, in-flight and anywhere else you may be traveling.