What's New, What's Hot is Travel Weekly's look at useful and fun travel gadgets, edited by Joe Rosen. First up, the Jiobit Location Tracker for Children. This tiny gadget makes a lot of sense for parents traveling with kids. About the size of two quarters, once clipped onto a child's clothes it provides accurate, real-time tracking at any distance; works through walls such as in hotels; and is water proof for effectiveness at the beach or pool. Moreover, Jiobit has an altimeter so you can track a lost kid to a specific floor in a hotel or mall.