Have we invented a long-distance jetpack yet?

Turning your daily commute into a joyride Mark Nerys "I can't reach my coffee holder." Martin Aircraft in New Zealand built the prototype that’s closest to allowing you to jet to work. A fan-propelled, rotary-­engine-powered jetpack with 200 horsepower, the Martin Jetpack (not pictured) keeps steady altitude even if riders’ hands leave the controls for a…