The January 2011 issue of Popular Mechanics resurrects the perennial hope for a flying automobile. The cover taunts, “(Go Ahead, Laugh) But NASA, DARPA & the FAA Are Serious.” Sharon Weinberger taunts some makers a bit in her article, “Driving on Air,” as she looks at a variety of Transformer-style vehicles that can travel by land or air with the fewest inconveniences. She notes the differences between propelling cars and planes, and looks at extremely different modes of giving people personal aerial transport, including the Moeller Skycar (“Inventor Paul Moeller has been developing the concept for nearly 50 years. To date, the M400X has only hovered on a tether.”), the Martin Jetpack, The Cartercopter, and the Terrafugia Transition that’s been getting an enormous press following (and a featured spot in the Hammacher Schlemmer Christmas catalog) lately. She ends with an overview of Dr. Mark Moore’s Puffin, detailed in this blog in January. After explaining that a commuter using the Puffin would rise …